Andy Dalton leaves with arm bruise

INDIANAPOLIS -- Cincinnati Bengals quarterback Andy Dalton does not appear to have a serious injury after leaving Thursday night's preseason finale against the Indianapolis Colts with a bruised right arm.

Coach Marvin Lewis says Dalton is "fine" and would have returned had it been a regular-season game.

Dalton was hit by Robert Mathis and others on the Bengals' sixth offensive play. Initially, he stayed down, then got up and walked toward the sideline where he dropped to the ground again. Trainers appeared to be checking his elbow.

"It was a stupid thing where my hand went a little numb, kind of like getting hit in the funny bone," Dalton explained. "I wish it didn't happen, but it did. I'll be ready to go (for the season opener)."

Bruce Gradkowski replaced Dalton for the Bengals, going 12 for 19 for 95 yards and a touchdown.

Dalton remained dressed in shoulder pads and stood on the sideline for the rest of the drive, which ended with a 37-yard field goal.

The Bengals lost to the Colts, 20-16.

Information from The Associated Press was used in this report.