WBO super middleweight champion Joe Calzaghe is targeting a unification bout with IBF title holder Jeff Lacy. Calzaghe's promoter, Frank Warren, says the fight will go ahead in September providing the Welshman beats Mario Veit in a mandatory defence on 7 May.
"Joe has called for a unification fight for some time now and Lacy wants the fight, so the ball is now in Joe's court," said Warren.
Unbeaten Lacy has defended his title twice since winning it last October.
The American's last defence came in March with a seventh-round stoppage of Rubin Williams.
Calzaghe was scheduled to meet Brian Magee in Belfast last month but the fight was cancelled at the last minute.
The WBO stopped the bout after a protest from German television company ZDF, which holds the rights for the Calzaghe-Veit fight.
ZDF complained that the fight broke a WBO rule that prevents a champion from fighting less than 60 days before a mandatory defence.
Calzaghe beat Veit in less than a round when the pair met in 2001 and has promised to "break him in half" this time round.