Fabricio Werdum (left) and Antonio Silva square off after Friday’s free public weigh-in at Sears Centre in Chicago. The Brazilian heavyweights will collide in one of the four Mixed Martial Arts fights tomorrow/Saturday, Nov. 7, on the CBS Television Network. The “STRIKEFORCE: Fedor vs. Rogers” broadcast begins at 9 p.m. ET/PT (delayed on the West Coast).

Strikeforce light heavyweight champion Gegard Mousasi (left) and Rameau Thierry Sokoudjou pose after their weigh-in. They will meet in a non-title affair in one of the featured CBS fights at Sears Centre.

Jake Shields (wearing baseball cap) and Jason “Mayhem” Miller pose and then square off one day before they collide for the Strikeforce world middleweight championship in the semi-main event.

Main eventers Fedor “The Last Emperor’’ Emelianenko and Brett “The Grim” Rogers weigh-in and pose on Friday.

Recent Strikeforce signee, Dream lightweight champion Shinya Aoki, was introduced and spoke to the several hundred fans and media assembled for the weigh-in.

Roxanne Modafferi (left) and Marlos Coenen pose after their weigh-in.

Also participating at Friday weigh-in were The Rockstar Girls.

Tickets are still available at the Sears Centre Arena box office (www.searscentre.com), Ticketmaster locations (800) 745-3000, Ticketmaster online (www.ticketmaster.com) and STRIKEFORCE’s official website (www.strikeforce.com).

Doors for the live mega-event open at 5:15 p.m. CT. The first non-televised bout begins at 6 o’clock CT.