The Strikeforce Heavyweight title will be on the line May 15 when Brett “Grim” Rogers tries to take the belt from Alistair Overeem. Also that night Andrei Arlovski vs Antonio “Big Foot” Silva and Brazilian Jiu-Jitsu ace Ronaldo “Jacare” Souza takes on middleweight contender Joey Villasenor, while Roger Gracie makes his debut against former UFC fighter Kevin Randleman.