Isaiah Crowell

The Raiders placed Crowell (Achilles) on injured reserve Friday, James Palmer of NFL Network reports.

Crowell suffered a torn Achilles while working out Monday, Adam Schefter of ESPN reports. He's scheduled to undergo season-ending surgery next week.

Crowell (ankle) is expected to play Sunday against the Colts, Adam Schefter of ESPN reports.

Coach Todd Bowles confirmed that Crowell suffered a concussion during Friday's preseason game against the Falcons, Rich Cimini of ESPN.com reports.