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According to ESPN.com:


Josh Barnett (26-5) -300 vs. Brett Rogers (11-2) +240


Gilbert Melendez (18-2) vs. Tatsuya Kawajiri (27-6-2) [rumored] [LW title]

Strikeforce in April coverage
The second quarterfinal leg of Strikeforce's World Grand Prix: Heavyweight Tournament will take place April 9 at a to-be-determined location.Alistair Overeem (34-11) -340 vs. Fabricio Werdum (14-4-1) +260
Strikeforce CEO Scott Coker confirmed the date Thursday afternoon following the final news conference for a Jan. 29 Showtime-televised card.
While venues in the U.S., Canada and Brazil remain in play for a card featuring Alistair Overeem against Fabricio Werdum, Josh Barnett versus Brett Rogers, and, Coker confirmed, the return of Strikeforce lightweight champion Gilbert Melendez, Japan appears to be the front runner.


Josh Barnett (26-5) -300 vs. Brett Rogers (11-2) +240


Gilbert Melendez (18-2) vs. Tatsuya Kawajiri (27-6-2) [rumored] [LW title]


Strikeforce in April coverage