"Strikeforce: Lawler vs. Shields" will be held June 6, 2009, at the Scottrade Center in St. Louis, Missouri. It will be broadcast live at 10 p.m. ET on Showtime.

Here is an updated fight card:

Main Event (182 lbs. Catchweight): “Ruthless” Robbie Lawler (16-4) vs. Jake Shields (22-4-1)

Televised Main Card:

180 lbs.: (Catchweight) Nick Diaz (19-7) vs. Scott “Hands of Steel” Smith (17-5)

205 lbs.: Rafael “Feijao” Cavalcante (7-1) vs. Jared Hamman (10-1)

265 lbs.: Alistair “Demolition Man” Overeem (29-11) vs. TBA for Heavyweight Title

170 lbs.: Phil “New York Bad Ass” Baroni (13-10) vs. Joe “Diesel” Riggs (29-10)

185 lbs.: Evangelista “Cyborg” Santos (16-12) vs. “Smokin’” Joe Villasenor(26-6)

Undercard (not officially confirmed):

170 lbs.: Josh Baumgartner (5-0) vs. Jesse Finney (3-0)

170 lbs.: Tyron “Tobasco” Woodley (2-0) vs. Sal Woods (2-4)

185 lbs.: Lucas Lopes (8-8) vs. Scott Ventimiglia (12-5-1)

155 lbs.: Pat Benson (3-5-1) vs. Dave Cochran (16-19)

265 lbs.: Booker DeRousse (1-1) vs. James Wade (0-0)

For the heavyweight title fight against Overeem, rumors that former UFC heavyweight fighter Fabricio Werdum may be the challenger. But if Werdum's contract isn't finalized in time, the other No. 1 contender is former Elite XC heavyweight Brett Rogers (9-0).