By Alexey Sukachev

O2 Arena, London - It's official: Kevin Mitchell is once again back into lightweight title contention. Following two years of recovery from his championship loss to Ricky Burns, which included four tune-up wins and a major one - against Ghislain Maduma - Mitchell displayed his finest in an eighth-round demolition of ex-WBC title challenger Daniel Estrada in a bid for a vacant WBC Silver 135lb belt.

Mitchell was a king of the moment since the opening bell. Fluid and flexible he was merciless in his counter attacks and brutal flurries against slow and rugged Mexican Estrada, who was coming off a kayo loss to Omar Figueroa in August 2014. The Mexican marched after Mitchell but winged way too wide, while Mitchell was very sharp in backfire.

Estrada, 29, became more aggressive in the third and paid a corresponding price for that, when Mitchell caught him with a wicked right counter to drop him down for a second. The Mexican answered with a wobbling shot of his own - his biggest success in the fight - but Estrada was also cut over his right eye in conclusion of that round. He has never been the same after that being easily dismantled by the much more superior combatant in the Englishman.

Mitchell, 30, was specifically effective in rounds six and seven. Referee Ian John-Lewis started to look carefully at Estrada from the beginning of the eighth, and Mitchell didn't disappoint delivering blows in scary packages, finally forcing a stoppage at 1:12 of the

rounds. Estrada did not go down from the barrage but he was outgunned, outpunched and hurt enough for a stoppage to be considered justified.

IBF #4 and WBC #7 lightweight Mitchell is now 39-2, with 29 KOs, while the Mexican is now 32-4-1, 24 KOs.

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John Wayne Hibbert scored a perfect eighth-round stoppage of overly brave Tyler Goodjohn in a good light welterweight scrap for Hibbert's WBC International title. Goodjohn was very courageous, not that skillful however, to get a pass.

Hibbert, 30, started very confidently, marching forward, pinning Goodjohn to the ropes, pnishing him there with fistic tornadoes of his own. Hibbert had a great round two, wobbling his foe at the end and opening a cut over his left eye.

Goodjohn, 23, dug very deep and made a major comeback, starting from round three. He bullied Hibbert back, landed a number of punches, forced him on the defensive. He also ate a good share of blows himself, so the question was if his reservoir was deep enough for such a surge. The answer became clear to the end of the sixth - no, it wasn't. Goodjohn, eating way too many punches, slowed down and became a sitting target for Hibbert's punches in the seventh. He was wobbled several times but came back bravely each time out.

Courage alone wasn't enough to prevent him from getting more damage in the eighth. Finally, he was rocked again, stumbled out and was saved from further punishment by the referee. Time was 0:53 of the eighth round. Hibbert improves to 15-2, with 9 KOs, while Goodjohn is now 11-4, 4 KOs.

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WBO #11 middleweight John Ryder got a mildly satisfying kayo ending of his very unsatisfying if hardly watchable collision with Argentinean fringe contender Billy Facundo Godoy. Southpaw Ryder, 26, ended matters with a straight left hand to the chin of Godoy in round ten.

The Argentinean, who had wins over such fighters as Jorge Sebastian Heiland and Carlos Manuel Baldomir in his past, concentrated on survival rather than on fighting - specifically in the first half of the fight. There was much holding, tackling and hugging, and Godoy used as many of his spoiling skills as he was able to find. Ryder, 4-0 in 2014 following a close loss to Billy Joe Saunders in 2013, was unable to cope well with this viscous tactics, being glued in close quarters.

Nevertheless, Ryder looked considerably better than Godoy, despite eating some right crosses in return but fans were frustrated with a way the fight had taken. Just when it seemed to be another stinker in making, Ryder unloaded a major left hand to put Godoy down. The Argentinean was up at eight but then - not surprisingly for those familiar with British judgement - referee Phil Edwards waved the fight off to the mild protest of Godoy.

John Ryder improves to 20-1, 12 KOs, with the initial defense of his WBO I/C middleweight title. Godoy. 28, is now 31-4, with 15 KOs. Time of stoppage was 1:52.

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It wasn't as smooth as he had probably envisioned, but Tommy Martin kept his perfect record intact and captured his first professional title with a hard-fought but honest victory over rugged Ricky Boylan in a bid for a vacant BBBofC English light welterweight title. The decision was unanimous for now 11-0, 3 KOs, Martin - 97-93 (twice) and 99-92.

Martin, a smooth operator with above-average boxing skills, young and fresh at 20, moved out of the firing range of hard-nosed Boylan in the first couple of rounds. His speed deteriorated a bit in the third, and Boylan got the better of Martin in rounds four and five, putting them in bank. Martin responded well to this adversity, starting to use a sneaky left hook to the chin of bull-rushing Boylan to tag him in close quarters. Boylan punched more than Martin but lacked precision, while the fleet-footed youngster did much better on the defensive and landed at a better percentage in the second half of the bout.

Boylan, 26, is down to 12-2, 4 KOs. BoxingScene had it 98-92 - for Martin. Referee was Marcus McDonnell of Twickenham.