Colts' center Jeff Saturday is expected to miss three-to-four weeks of action after suffering a strained calf muscle. Saturday suffered the injury against the Chargers on Sunday night and was unable to finish the game. Rookie Jamey Richard, a seventh-round pick, will fill in for Saturday in the meantime. "Jamey got himself ready to play even though he wasn't planning on playing, and that's what you have to do as a backup player," Coach Tony Dungy said.