Ahmad Bradshaw unsure on surgery

Indianapolis Colts running back Ahmad Bradshaw visited with Dr. Robert Watkins in Los Angeles on Thursday to help determine if he would need neck surgery, a source said.

For now, Bradshaw is undecided about whether to have surgery, the source said.

Bradshaw, who has 186 yards on 41 carries this season, is unlikely to play Sunday against the Seattle Seahawks.

Bradshaw originally injured his neck in a Sept. 22 game at San Francisco. He did not practice last week and missed last Sunday's 37-3 victory over Jacksonville.

Trent Richardson will continue to start at running back, with Donald Brown backing him up, while Bradshaw is out of the lineup.

ESPN.com Colts reporter Mike Wells contributed to this report.