Joe Calzaghe will make his 13th defence of the WBO super-middleweight title against veteran American
Thomas Tate on 3 May.
No venue has been announced, although it is hoped that the fight will take place in Calzaghe's native Wales.
Tate was due to meet Calzaghe in Newcastle before Christmas, but was forced to withdraw when he suffered a perforated
Journeyman Tocker Pudwill was a late replacement for Tate and was destroyed in two rounds by Calzaghe.
The Welshman has been pondering a step up to light heavyweight as he continues to seek a
so-called career-defining fight.
His frustrations have continued as hoped-for unification clashes with Sven Ottke and Eric Lucas have been frustrated by
excessive purse demands.
"Both Ottke and Lucas are asking for ridiculous amounts of money which is making the fight harder to make," said Warren.
Calzaghe said: "I believe that if you are world champion then you should prove your class by fighting the best. Obviously
these champions do not think the same way.
"I will beat Tate in devastating fashion and I believe that will force a fight between myself and Ottke or Lucas."
Tate is not a name to compare to Ottke or Lucas, let alone Bernard Hopkins or Roy Jones Jr, but he is a respected operator
who has been in with the best.
The man from Detroit should provide much stiffer competition than the hapless Pudwill, but Calzaghe will view the match as a
warm-up for a 'superfight' in the summer.