The following is an excerpt from an article on the official Strikeforce website:
A lottery ball drawing, which will take place immediately following the fighter weigh-ins at the HP Pavilion’s The Grill restaurant on Thursday, the eve of Strikeforce’s mixed martial arts mega-card, will determine the tournament brackets for Friday’s historic, four-man middleweight (185 lb. limit) tournament.
Tournament competitors Trevor Prangley (16-4), Falaniko “Niko” Vitale (24-7), Yuki Sasaki (21-13-1), and Jorge Santiago (14-7) will each draw one of four balls, numbered “1” through “4,” and, then, one by one, choose which location in the single-elimination tournament draw they wish to occupy. The first choice will be given to the fighter who draws the ball numbered 1, the second choice to the fighter who draws ball number 2, and so forth.
Each tournament bout will consist of two, five-minute rounds. The victor of the first-ever sanctioned mixed martial arts tournament in the state of California will potentially be awarded the opportunity to challenge Strikeforce World Middleweight Champion, Frank Shamrock.