LAS VEGAS -- Former light-heavyweight champion Forrest Griffin has had to pull out of UFC 155 due to a knee injury.
"Forrest Has MCL tear and ACL strain," UFC president Dana White tweeted Wednesday. "20 cc's of blood removed from his knee and the saga continues at the UFC!!"
Griffin was due to face Phil (Mr. Wonderful) Davis.
Others already off the Dec. 29 card in Las Vegas through injury include lightweight Gray Maynard and middleweight Chris Weidman.
In UFC 156 news, flyweight Joseph Benavidez takes on Ian McCall, while lightweight Evan Dunham meets Gleison Tibau on the Feb. 2 card in Las Vegas.