TERRE HAUTE, Ind. (AP) — Colts cornerback Kelvin Hayden bruised his right heel during Thursday afternoon’s practice, the latest starter to join Indianapolis’ growing injury list.

Hayden started all 16 games last season, producing career highs in tackles (117), interceptions (three) and forced fumbles (two) and passes defended (12). He was hurt late in the afternoon session and was taken into the locker room with his right foot wrapped in ice.

“I don’t think it’s too serious,” coach Tony Dungy said. “He was a lot better at the end of practice.”

Also added to the injury list: starting right tackle Ryan Diem.

Diem did not practice Wednesday or Thursday and Dungy said it was unlikely Diem would play in Saturday’s preseason game at Atlanta because of an injured shoulder.

The Colts have had injuries to several prominent players.

Five starters — two-time league MVP Peyton Manning, 2007 defensive player of the year Bob Sanders, former league sacks champ Dwight Freeney, outside linebacker Tyjuan Hagler and left guard Ryan Lilja — still have not practiced after being placed on the physically unable to perform list when training camp opened.

Rookie linebacker Philip Wheeler, a third-round pick, was on the sideline Thursday but has not practiced since having knee surgery last week. Second-year defensive back Michael Coe will miss the rest of the season after undergoing knee surgery.

Punter Hunter Smith likely is out for Saturday after hurting his hamstring, and left tackle Tony Ugoh practiced Thursday after missing Wednesday’s morning session with a knee injury.

Linebackers Gary Brackett, the defensive captain, and Clint Session, Hagler’s replacement, both missed time last week with injuries but have since returned.

The Colts have one more practice Friday at Rose-Hulman Institute of Technology before returning home.