"Indianapolis Colts safety Bob Sanders has a torn biceps tendon and is out indefinitely, if not for the season, two team sources told ESPN NFL Insider Adam Schefter.

Sanders, the league's 2007 defensive player of the year, was injured on the Texans' first offensive series when a pass was deflected by Colts safety Antoine Bethea into Sanders' face mask.

Sanders left his feet and landed awkwardly on his arm. "