Hailing from the Steel manufacturing city of Sheffield, England, Kell first laced up his gloves aged just 9 years old. Brook's father was the first to introduce him to the sweet science of boxing. A young Kell would get all worked up watching Bruce Lee films and bounce from wall to wall. His father, felt boxing would be a great outlet for Kell's hyper-activity. He took him the the World famous Winkobank Gym which has produced the likes of Herrol Bomber Graham, Jonny Nelson, Prince Naseem Hamed, Ryan Rhodes and Junior Witter. Kell had his first amateur fight at age 12 under the tutelage of Naseem Hamed's trainer Brendan Ingle. By the end of his tenure he had won 31 of his 36 fights, winning two Amateur Boxing Association of England titles and two National Association of Boys Clubs British Boxing Championships and a Gold medal in the 4 Nations. After his successful amateur career he faced the inevitable comparisons to Prince Naseem Hamed. The British media have unfailingly brought up Hamed in nearly every interview with Kell during his early career. They have ordained his as 'The New Naz', for what that's worth. Brook grew up a fan of Hamed, even sparring the former featherweight champion on several occasions when he was 13 years old. Even though he had only begun his amateur career the year before, Kell says he held his own. I was a bit star struck by just how fast he was. I was younger though. He cracked me good sometimes just to show me who was the man. There is a sense of Hamed influence in Brook's style; The switching between stances, the dependence on timing and reflex. Despite his adoration, the pressure of being compared to the flashy icon was uncomfortable at times. Of course it was but I just got on with it, I'm my own man.
Brook's first fight as a professional took place in September 2004 with a 6 round points victory over experienced Peter Bukley at the Don Valley Stadium in Sheffield. He would fight again four more times that year to end 2004 with a record of 5-0 in just four months. Brook went about learning his trade against a host of journeymen before getting the opportunity in June 2008 to fight for the British title having compiled a winning record of 16-0.
The championship fight at London's York Hall saw Kell Brook take on Welshman Barrie Jones for the vacant crown. The fight was not without controversy however as the previous incumbent,Kevin McIntyre, had been stripped of the title after he sustained an injury and had to pull out of his scheduled defence against the Yorkshireman. Brook ended up winning the vacant belt with a 7th round stoppage of Jones who had come in at relatively short notice.
Having won the belt Brook was then ordered to face the former champion and the bout took take place in Glasgow's Kelvin Hall on 14 November 2008. Prior to the fight and referring to the bad blood that has built up between the two fighter's Brook said "Once I knock out McIntyre in style then there will be no question mark over who should be British champion." When the fight finally did happen, Brook put McIntyre down three times in the first round to win by TKO to send the Glasgow crowd home disappointed.
On 30 January 2009 Brook returned to the York Hall to meet former marine Stuart Elwell in a voluntary second defence. The fight again ended quickly when the referee stopped the fight in the 2nd round handing victory to Brook. He claimed the Lonsdale belt outright on 20 July 2009 when making his third defence against Prizefighter winner Michael Lomax. The fight, at the MEN Arena in Manchester, was on the undercard to Amir Khan's world championship victory over Andreas Kotelnik and saw Brook win by stoppage in the third round. After the fight Brook said that he believed he was the best in Britain but couldn't say for sure until he's beaten Chorley's Michael Jennings who he challenged to a match-up.
On 25 September 2009, Brook pipped fellow champion Nathan Cleverly for the prestigious title of young British boxer of the year voted for by the Boxing Writer's club. The vote was the closest in the history of the award with Brook claiming the honour by one vote over Cleverly who held both the British and Commonwealth titles at light-heavyweight. In winning the award Brook joined a list of boxers which included the likes of Ken Buchanan, John H Stracey, Barry McGuigan, Nigel Benn, Naseem Hamed, Joe Calzaghe and Amir Khan.
WBO Intercontinental champion
Brook's first fight of 2010 took place in Liverpool on 12 March 2010. The fight, for the WBO Intercontinental title, pitched Brook against Poland's Krzysztof Bienias, a man last beaten by Junior Witter in 2005 and with a run of seventeen straight wins. Brook collected his second career title when in the sixth round the fight was stopped by the referee following a dominant display by the Yorkshireman. Brook's long awaiting fight against Michael Jennings was due to be next on 3 July 2010 until a rib injury forced the fight to be postponed for a second time. The fight, for Brook's British belt was then scheduled to take place between Jennings and former Commonwealth champion John O'Donnell[ before O'Donnell pulled out and was then re-scheduled between Brook and Jennings. Finally, on 18 September 2010 Brook boxed Michael Jennings at the LG arena in Birmingham. Kell won the fight in round 5 following a bad cut above the eye sustained by Jennings which the referee deemed bad enough to stop the fight. The win doubled as Brooks's fourth defence of the British title and his first defence of the inter-continental belt. On 9 December 2010 Brook made his second defence of the inter-continental title beating Ghana's Phillip Kotey with the referee waving the fight off during the second round. The win ensured that Brook kept his number one ranking with the World Boxing Organisation.
On 8 April 2011 Brook split from promoter Frank Warren and joined the Matchroom Sport boxing stable under Eddie Hearn with Brook saying that he was "really buzzing" to have joined the outfit. Hearn said that he was "excited about adding Kell to our stable" which had also recently signed Jamie Jackson former amateur British light welterweight champion now turned professional trainer. Speaking of Brook he said "Kell oozes class and has that something special about him – in short he is going to be a superstar." Brook's first contest for the promotional outfit was on 25 June 2011 at the Hillsborough Leisure Centre in Sheffield and resulted in a unanimous 12 round points decision against Lovemore N'dou, claiming the WBA version of the inter-continental title in the process.
"The War of the Roses" vs Matthew Hatton - 17 March 2012
On 17 March 2012, Kell Brook took his undefeated run to 27 fights by beating Matthew Hatton brother of Ricky Hatton on points in Sheffield. The scores were 119-107, 119-108 and 118-109 all in favour of Brook. In front of nearly 10,000 fans at the Motorpoint Arena, Brook added the IBF International welterweight title to his WBA Inter-Continental crown. Brook floored Hatton in the ninth round but could not knock out his Mancunian opponent. The fight gave record breaking viewing figures for Sky's Fight Night Live programme it was also the most watched fight of the year in Britain. Afterwards he said on the prospect of facing Khan: "Of course I want Khan, I've been banging on about Amir Khan, but I'm going to do my own thing and if that fight happens, it happens, and I'll smash him. I want to be fighting at that top table now with elite fighters. I think I've proved I deserve to be there."
"Edge of Glory" vs Carson Jones - 7 July 2012
Brook faced American Carson Jones at the Motorpoint Arena in Sheffield on Saturday 7 July 2012. Eddie Hearn's Matchroom Sport promoted the fight with it being billed "Edge of Glory" as both fighters saw this fight as a stepping stone to a shot at a world title. The fight was shown live on Sky Sports 1. The weigh in took place in Sheffield's Winter Gardens on 6 July with Brook weighing in at 10 st 6 lb 10 oz (60.16 kg) and Jones weighing slightly less at 10 st 6 lb 6 oz (60.04 kg). Brook dominated the early rounds moving well and connecting regularly with nice two and three punch combinations however as the fight went on he began to tire and Jones was able to land shots of his own. Brook's nose was broken in the 8th round which made it yet more difficult for him to come back into the fight. He was almost floored in the final round but was able to hold on until the bell. Brook did enough in the early rounds to win the fight by majority decision, as the judge's scorecards read 114-114, 116-113 and 115-113 in Brook's favour. Brook was taken to Hospital after the fight due to blood loss from his broken nose.
In August 2012 Matchroom Sport announced that Brook would face Argentinian veteran Hector Saldivia at the Motorpoint Arena in Sheffield on 20 October 2012. The winner would then become the mandatory challenger for the IBF welterweight world title held at the time by Randall Bailey. At a packed weigh in the day before the fight at Sheffield's Meadowhall Centre both fighters weighed in under the 147 lbs limit. Brook started strongly knocking Saldivia down midway through the first round. The second round was very similar with Saldivia unable to deal with Brook's superior accuracy and power. In the third Brook landed a solid well timed straight which sent the Argentinian to the floor again. This time he struggled to get up as his legs wobbled beneath him and the referee stopped the contest in the third round.
After becoming the mandatory challenger Brook was set to fight Devon Alexander for the world title on 19 January 2013 at the Nokia Theatre in Los Angeles. However, Brook announced he had sustained an ankle injury and the fight was pushed back until 23 February 2013 and the venue changed to the Mosaic Youth Center on Grand in the Heart of Detroit, MI. Then Alexander announced he had a bicep injury causing the fight to re be rescheduled yet again. However, Kell would later pull out of this fight again after re-injuring his ankle, with fellow Brit and Matchroom Stable mate Lee Purdy taking his place but retiring in the 7th round. Alexander's camp have questioned the authenticity of this injury and instead assert that the unproven Brook was simply not ready to step up in class to fight Alexander, though this claim is seemingly less accurate after Brook convincingly defeated Shawn Porter, who had previously beaten Alexander.
After the saga with Devon Alexander Brook took a fight with Carson Jones in Hull on 13 July 2013, in a rematch of their original fight just over a year previously, which Brook won via a narrow majority decision. Brook took the early rounds of this contest looking far too powerful and quick for the American. Kell went on to win by stoppage in the 8th round to take his record to 30-0.
It was announced shortly after the rematch with Carson Jones that Brook would next face Vyacheslav Senchenko at the Motorpoint Arena in Sheffield on 26 October 2013. Senchenko had recently beaten Ricky Hatton forcing him to retire for good from boxing. Brook said he was using this as motivation and wanted to "get revenge" for a British boxing hero and a personal friend within the sport. Hatton was to be ringside for the fight and spoke to Kell in the dressing room just prior to the fight. The opening and second rounds were very cagey encounters with neither fighter wanting to give too much away with Brook perhaps using his jab more effectively and taking both the rounds. In the third Brook knocked his opponent down with a powerful right with Senchenko taking the 8 count and continuing. Brook started the fourth strongly out boxing his Ukrainian opponent although Senchenko did unsteady Brook for a few seconds before Brook sent Sencheko back to the canvas with another right. Referee Shada Murdaugh concluded that Senchenko was in no position to continue and Brook was declared the winner by technical knockout.
Beating Senchenko meant that Brook was once again the mandatory challenger for the IBF welterweight world title. Brook was the underdog going into the fight and it had been 28 years since a British fighter had won a world title from an American in the States. Shawn Porter came out aggressively and maintained pressure, relying heavily on looping shots. Brook kept his composure and showcased formidable defensive attributes, strength, and clean punching throughout the fight. Brook's technical ability took over after the middle rounds as the straight one-two combinations hurt Porter. Brook defeated Porter to win the title at the StubHub Center in Carson, California on 16 August 2014 by a majority decision (114–114, 116–112, and 117–111).
Six months after sustaining a life-threatening injury where he was stabbed three times in the leg and once in the arm during a machete attack, Brook fought his mandatory challenger, Jo Jo Dan. The fight took place on 28 March 2015 in Brook's home town, Sheffield. Brook came out landing straight punches. In round two, a straight right hand wobbled Dan. Brook followed up with a right uppercut than sent Dan to the canvas. Soon after, Brook landed two straight right hands, the first wobbling Dan and the second creating another knockdown. In the fourth round, Brook threw a straight right and left hand that hurt Dan and followed up with a furry that resulted in the third knockdown. The final knockdown was scored at the bell via counter left hand. Dan's corner subsequently stopped the fight in between rounds.
Kell Brook dismantled English rival Frankie Gavin in six rounds to retain his IBF title and turn his attention to making a serious dent in the welterweight division. Brook was a heavy betting favourite heading into the bout despite Gavin's renowned pedigree from his amateur days. He justified the bookmakers' faith too, as Gavin's elusive style proved too passive. When the champion got his opening in the sixth Brook is starting to turn on the style and picked him off at will. Kell opened up and went to work on Gavin and the fight was stopped. Early on it was clear that Gavin was not in the same class as Brook and he took a brutal flurry of punches and the referee rightly stepped in.
Kell Brook successfully defended his IBF welterweight title with a ferocious second-round stoppage of Kevin Bizier in Sheffield on Saturday. Brook, 29, had too much power for the Canadian challenger from the outset as he staged a third successful defence of the belt he first won in August 2014. "I want the big fights now," Brook told Sky Sports. Brook's win completed a successful return to the ring for the Sheffield boxer after a 10-month absence. He had stopped Frankie Gavin in six rounds in May last year and a proposed fight with Argentina's Diego Chaves was called off after Brook picked up a rib injury. The IBF had mandated his bout with Bizier, whose previous two defeats came against Jo Jo Dan, a fighter Brook defeated in four rounds a year ago. Brook was dominant from the outset against Bizier, who cut his eye inside the very first minute, and a second visit to the canvas for the Canadian led to the stoppage with 45 seconds left in the second round.
Kell Brook's dream turned into a disaster when his trainer called a halt to five brutal rounds as he lost to Gennady Golovkin. Dominic Ingle waved the white towel from the corner after the British challenger had suffered damage to his right eye in an explosive encounter at The O2 Arena on Saturday night. Brook had been caught early on by Golovkin, only to return the favour shortly after - and up against one of the hardest hitters in the game, the vision issue seemed to have the decisive impact after a barrage of unanswered shots in the fifth. Ingle will be criticised by some for pulling the 'Special One' out, but Brook had been troubled from as early as the opening minutes. By the fifth, he had no defence up - never mind full vision - as knockout specialist Golovkin showed his power is savage, to say the least. However, Brook proved that class can match power and, at times, overhaul raw brutality, To learn that one of the judges had him ahead and two level on their scorecards until the towel came in made a mockery of those who claimed that Brook would be blown away by the middleweight kingpin. There were multiple winners. Golovkin made it 36-0-KO32 with another ruthless show, while his challenger emerged with extreme credit and boxing fans around the world saw a classic clash that will live long in the memory. The opening salvo was what we expected, Golovkin marching forward, landing body shots and the odd straight right, closing down the gap and pushing Brook back. But it clearly was not going to be over in a flash, as the Sheffield fighter picked him off with a lovely left. The next blow, though, was a typical left to the ribs that left Brook open for a simple shot to the head that momentarily put him on unsteady legs. Brook regrouped, though, and somehow closed the round with two more of his left uppercuts and a hook to almost redress the balance. The challenger started the second round in similar fashion - on the offensive - with another shot from his waist, a straight right and another left uppercut catching Golovkin, marking his face and even bloodying his nose. It was then that Brook started to scratch that right eye, trying to refocus it, yet even though Golovkin began closing him down more and more, the champion was as frustrated as he was fearsome in his usual approach. Brook slipped over at the start of the third, suggesting his balance was no match for Golovkin's bullying, yet he still gave as good as he got, at times happy to sit in the pocket and counter again, even in the next two non-stop, yet less dramatic rounds.
By then, the eye seemed to be bothering Brook more, while Golovkin was in almost robotic mode, and the fifth saw him trap the British star in a neutral corner and unleash multiple blows - the left to the body proving he had not damaged his chief weapon six weeks ago, and the right highlighting both his hands do damage. Ingle was then calling an end to the contest, leaving the crowd stunned. But even with an eye socket damaged, Brook remained standing and was able to leave the ring with his head held high.