ESPN2' Friday Night Fights will feature a last-minute replacement in its main event tonight. Amid rumors that he may get a September date against Vitali Klitschko, Oleg Maskaev was scheduled to face Dale Crowe in Atlantic City, New Jersey. But Crowe had to pull out and Maskaev instead will face Livin Castillo. Listed at 10-2, Castillo was stopped in 2000 by current world cruiserweight champion Jean Marc Mormeck and in 2003 by light heavyweight contender Jorge Castro. However, in 2004, he got a majority decision over heavyweight Robert Hawkins, who himself stopped Maskaev a decade ago. -Scott Shaffer