CINCINNATI (AP) - Bengals receiver Chad Johnson landed awkwardly while trying to make a catch in the first quarter against Detroit Sunday-- then left the game to have his left shoulder treated.

Cornerback Brian Kelly hit Johnson as he tried to pull in a pass from Carson Palmer on the Bengals' first series, jarring the ball loose.

Kelly came up with the interception and an off-balance Johnson landed on his left side.

The Pro Bowl receiver rolled around on the field for several seconds, then got up and went to the sideline.

Trainers examined the shoulder on the field before Johnson went to the locker room.

The Bengals already were without receiver T.J. Houshmandzadeh, missing his second preseason game with a sore hamstring.