According to MMA Fighting:
Strikeforce welterweight champion has agreed to defend his title against Evangelista “Cyborg” Santos on Jan. 29 in San Jose, Calif. Sources close to Strikeforce confirmed the booking with MMA Fighting early Wednesday morning.
The title fight is expected to serve as the main event on the Showtime televised card. According to sources, only four bouts are going to be televised on Showtime due to the two title fights scheduled.
Jan 29th live on Showtime from San Jose, Calif:
Nick Diaz vs. Evangelista “Cyborg” Santos [WW title]
Ronaldo “Jacare” Souza vs. Robbie Lawler [MW Title]
Herschel Walker vs. Scott Carson
Roger Gracie vs. Trevor Prangley