The Colts are placing player Bob Sanders on the high priority list as the next game with the Colts approaches. They say that keeping Sanders available is critical for the team. Whatever helps to keep Sanders on stand-by is worth considering. Coach Tony Dungy says that much of Sanders’ success is due to his versatility, instincts and his speed. The Colts take on the Houston Texans Sunday at 1 p.m. in Houston.