Amir Khan makes his comeback against Oisin Fagan at London's ExCeL Arena on Saturday.
Khan, 21, is hoping to get his career back on track after being knocked out by Breidis Prescott in his last fight.
In September, Bolton lightweight Khan was beaten inside a minute by Colombian Prescott and Cuban trainer Jorge Rubio, who instigated the match, was dismissed soon afterwards.
Khan has since linked up with venerable American trainer Roach and believes he is already a far better fighter as a result.
Khan was forced to strip naked at Friday's weigh-in in order to hit the 9st 9lb limt.