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Shane Carwin pulls out of bout

10/27/2010

LAS VEGAS -- UFC heavyweight contender Shane Carwin says he's pulling out of a high-profile New Year's Day bout with a back injury.

Carwin (12-1) announced his decision on his blog Tuesday. He was expected to fight Roy Nelson in the co-main event at UFC 125 in the MGM Grand Garden.

He says he has unspecified damage to his back that may require surgery.

Carwin was unbeaten until his second-round submission loss to Brock Lesnar last July.

The UFC has no obvious replacement for Carwin in his fight against Nelson, which could have set up the winner with a chance to face new heavyweight champion Cain Velasquez later in 2011.

Frankie Edgar will defend his UFC lightweight title against Gray Maynard in the main event at UFC 125.