Tyson Fury,the British and Commonwealth champion dominated the opening two rounds but Firtha had Tyson in trouble with a big punch in 3rd. Fury, only 23 years old, regained the upper hand in the fourth and referee John Keane halted the fight after two minutes 19 seconds in the 5th round..For Fury, it was the 16th victory of his unbeaten professional career and 11 of those 16 wins have come by KO.

Firtha, who took the fight at just two weeks' notice, survived an early onslaught from Fury but recovered to land a telling right hand of his own, which rocked his 6ft 9in opponent.

A huge right in the fifth had the American in trouble again and this time the referee stepped in.
 "He caught me with a good punch and I had to come back from it," admitted Fury after winning the fight in the 5th of a scheduled 12 rounder.

"It's all part of being a heavyweight boxer. It was an action-packed five rounds for the Irish fans and credit to Nicolai, he's a tough guy, but in the end he was taking too many.

"I'm still learning and I'm just looking forward to my next fight," he added.