Jared Wickerham/Getty Images
Pittsburgh Steelers star running back Le'Veon Bell suffered an ugly knee injury as he was tackled by the Bengals on Sunday. He was immediately carted off the field, and won't return.
WARNING: Some may find this video disturbing.
Bell was tended to on the sideline before being carted to the locker room.
Bell also suffered a knee injury at the end of the 2014 season that caused him to miss the Steelers' playoff game. In that case, he avoided any major ligament damage.
Let's hope this injury is not as bad as it looked.
Jared Wickerham/Getty Images