Shane Carwin plans on withdrawing from his previously announced fight against Roy Nelson at UFC 125 on Jan. 1 in Las Vegas.
Carwin blogged Tuesday morning that he will need at least a couple of months to recover from a back injury and much longer if surgery is required.
“I am going to pull out of the fight with Roy Nelson,” Carwin said. “As many of you know I have been having some back pain. I had an MRI yesterday and I have some damage that may really require surgery. If the doctors do not have to perform surgery then I will be out eight to 12 weeks. If they do have to perform surgery, I do not know how long I will be out of action.”