If there’s one thing Shane Carwin’s got a knack for, other than knocking people out with his lunchbox-sized fists, it’s picking up injuries.

He’s only had two fights in the last couple of years due to injuries and surgeries, and his upcoming fight with Roy Nelson at the TUF 16 Finale in December is now at risk after he revealed that he’s back on the treatment table again.

“I saw the doctor last week and got an MRI. It happened during wrestling,” Carwin told BloodyElbow. “A guy was in on a single and I went to throw my hips back and I heard ‘pop! pop! pop!’, so we stopped and he had to help me up. It’s down in size now. It was about the size of a watermelon, but now it’s the size of a cantaloupe. The good news is the doctor doesn’t think I need to have surgery, and we’re still going to push to stay in that fight on December 15th, and I think we’ll be good to go.”

That sounds positive, but bearing in mind that just a few weeks ago Jose Aldo assured everybody that he would still be ready for his title fight at UFC 153 despite injuring his foot and then a few days later withdrew from the event, there’s reason to proceed with caution here too.

Hopefully he does make it as Carwin Vs Nelson should be a fun slug-fest and and it’d be good to see “The Engineer” getting back into the Octagon at last.

However, if he does have to pull out though then you’d have to question how much longer the 37 year-old has to go in the sport before he considers hanging up his gloves.