UFC Heavyweight Champ Cain Velasquez Injured; Fabricio Werdum To Face Mark Hunt For Interim Title Belt [VIDEO]

UFC heavyweight champion Cain Velasquez suffered a right knee injury during training that has forced him to withdraw from his championship fight against top-ranked contender Fabricio Werdum on Nov. 15, the promotion announced Tuesday night. Velasquez-Werdum was slated to take place at UFC 180 in Mexico City.