This fight has been cancelled after Koch suffered an injury and was forced to withdraw.
The current fight card rumors and line-up for the UFC 143: "St. Pierre vs. Diaz" pay-per-view event at the Mandalay Bay Events Center on Feb. 4, 2012, in Las Vegas, Nevada.
MMAmania's Brian Hemminger takes a look at this weekend's middleweight matchup between veteran Ed Herman and undefeated wrestler Clifford Starks. What's the key to victory for both men? Find out...
MMAmania.com will provide LIVE blow-by-blow, round-by-round coverage of UFC 143, beginning with the PPV telecast at 10 p.m. ET on Feb. 4.