Results from Bramall Lane Stadium, Sheffield, UK:
George Groves became world super-middleweight champion at the fourth time of asking in spectacular fashion in an enthralling fight with Fedor Chudinov.
Both fighters went hell for leather from the opening bell in a ding-dong battle but Groves eventually wore down the solid Russian who had barely moved from the Londoner’s punches in the first five rounds.
A shuddering blow in the sixth started things off, and as Groves smelt blood, ‘The Saint’ was relentless in finishing the job.
Referee Steve Gray had no choice but to call the fight off with Chudinov on his feet as the ex-title holder just wouldn’t go down.
Groves could now be in line for a rematch with James DeGale which would see the big rivals each bring a belt to the table.
Dave Allen’s dream of becoming Commonwealth champion was shattered as he lost a split decision to Lenroy Thomas.
It was a close fight, with Allen starting the faster, ultimately the fight was lost towards the later rounds with the Jamaican landing cleaner shots.
Going the scorecard, the judges scored the contest 115-114 twice and 113-115 in favour of Thomas.
New Matchroom signing Jamie Cox made it a successful debut to extend his unbeaten run to 22-0 as he defeated Lewis Taylor.
Referee Steve Gray intervened in round 9 due to an accidental head clash.
The Swindon man captured the vacant WBA continental super-middleweight title as it got took the scorecards. The judges scored the contest 88-83, 88-83 and 87-84.
Eddie Hearn has announced Cox will fight Rocky Fielding next for the British title.
Amateur star Anthony Fowler made a dream start to his professional career as ‘The Machine’ saw off Latvian Artus Geikins in the first round.
Fowler was a bit too eager at times but proved he has the power despite not showing what he and trainer Dave Coldwell had been working on.
Prior to the main bouts of the evening, it took Lawrence Okolie just 70 seconds to record his second win, before Joe Cordina made it three out of three for the Olympians as Artur Selivanos retired after the end of round one.
Andy Townend won his super featherweight contest after dismantling Jon Kays in just two rounds against an out-of-depth Arturs Geikins.
The man from Barnsley floored Kays twice, delivering a thunderous right hook to the chin the second time before his corner threw the towel in.
Townend was due to fight for the vacant Commonwealth belt, although the 28 year-old failed weight and the strap was only on the line for Kays.
In the middleweight division, Nadeem Siddique halted late replacement Pal Olah in the third round to improve to 25-2, whilst early action from Sheffield saw Kyle Yousaf and Atif Shafiq both win comfortably on points.
12 – IBF Welterweight title
Kell Brook 36-1 v
Errol Spence Jr 21-0
12 – vacant WBA ‘Super’ Super Middleweight title
George Groves 25-3 v
Fedor Chudinov 14-1