Dungiven light-welterweight Paul McCloskey says he is "unbothered" by the change of opponent for his bout at Belfast's King's Hall on Saturday.
Former IBF world lightweight champion Julio Diaz pulled out of the bill two weeks ago but McCloskey will now fight former WBO champion DeMarcus Corley.
Corley held the WBO light-welterweight belt between 2001 and 2003 and has lost three subsequent world title fights.
"This is a good fight for me," said 32-year-old McCloskey on Wednesday.
"The guy has a good track record but sparring has been going very well and I am ready for this fight."
Former world champion Corley has fought the likes of Floyd Mayweather, Zab Judah, Marcos Maidana and Junior Witter but his recent record suggests that the 37-year-old's best days are behind him.
Corley defeated Puerto Rico's Felix Flores to land the WBO light-welterweight belt in June 2001 but after making two successful defences, he lost the title to Zab Judah in July 2003.
After a points defeat by Floyd Mayweather a year later, Corley was handed the chance to regain the WBO light-welterweight belt in February 2005 but he was knocked out by Miguel Cotto.
His unanimous defeat by Britain's Junior Witter in a WBC light-welterweight title fight in September 2006 started a run of six straight defeats.
Six wins in nine fights then earned Corley a contest with Marcos Maidana for the interim WBA light-welterweight belt in August 2010 but he was outpoined by the Argentine.
That reverse was followed by five more successive defeats although he outpointed Puerto Rico's Gabriel Bracero over 10 rounds in his last contest in January which brought his career record up to 38 wins, 19 defeats and one draw.
McCloskey will hope that victory over the American could edge him towards another world title shot.
The Derryman has not fought since beating Breidis Prescott in September 2011.
That came five months after McCloskey lost to Amir Khan on a controversial points decision in Manchester.
The then WBA light-welterweight champion got the verdict after the contest was stopped in the sixth when McCloskey sustained a gash above an eye.
Carl Frampton attended McCloskey's press conference at Stormont's Parliament Buildings on Wednesday.
The opponent for Frampton's bout in Nottingham on 26 May will be announced on Thursday evening.
Frampton's bout will be chief support to Carl Froch's world title bout with Lucian Bute