Gray Maynard, Shane Carwin out of their upcoming bouts with injuries

Maggie Hendricks

If it weren't for bad luck, the UFC would have no luck at all. After scrambling on Tuesday to make changes to December bouts, they had to deal with two more big injuries on Wednesday.

-- According to UFC president Dana White's Twitter feed, "The Ultimate Fighter" coach Shane Carwin blew out his knee. He had to pull out of his fight with fellow coach Roy Nelson that was scheduled for the show's season finale. White said they are looking for a new opponent.

-- Not long after White's tweet, the UFC tweeted the other bad news of the day. Gray Maynard is also injured. He had to withdraw from his bout with Joe Lauzon. Jim Miller has stepped in and will face Lauzon at UFC 155.

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