INDIANAPOLIS -- The Indianapolis Colts have ruled out four players for Monday night's game with Houston.

Receiver Austin Collie and defensive tackle Antonio Johnson are the newest additions to the list.

Last week, Collie had surgery on his right thumb and Johnson had knee surgery. Neither was expected to play against the visiting Texans.

Safety Bob Sanders and linebacker Kavell Conner will both sit out again, too.

Sanders had surgery for a torn right biceps muscle after the season opener and hasn't played since that game. Conner had foot surgery earlier this season and has missed three straight games.