Alan Belcher is out of his upcoming fight against Demian Maia on September 15 at UFC FN 22.

Here was his official statement:

"While I was in brazil, I started losing my vision in my right eye. I saw a doctor that told me to go back to US immediately. My friend/surgeon from biloxi got me an emergency surgery scheduled in alabama and now I'm just trying to recover."

"No contact for 6 weeks. Sorry to my trainers. Sorry to ufc & Demian Maia, I know he has been training specifically for me. Sorry to my fans as well."

"As long as I get released from doctor I will try to make ufn 22 to see my fans and watch the fights."

There should be plenty of time for the UFC to find another opponent, but this would have been a great fight. Hopefully Belcher gets healthy soon and the UFC can find a quality replacement for Maia to fight.