Strikeforce welterweight champion Nick Diaz and his challenger, Evangelista “Cyborg” Santos, squared off on Thursday at the “Diaz vs. Cyborg” prefight news conference. Also, middleweight ace Ronaldo “Jacare” Souza and No. 1 contender Robbie Lawler were present to promote Saturday's Showtime-televised (10 p.m. ET) Strikeforce card. Dave Mandel photographed the scene for Sherdog.com.
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