Griffin told reporters he was "in pain," but will "be OK".
Griffin took a shot to the chest while scrambling out of bounds late in the fourth quarter and doubled over in pain after throwing an incomplete pass on the following play, a failed fourth down conversion attempt, before being examined on the sideline. He returned to hand the ball off to running back Isaiah Crowell three times before the clock expired, and did so gingerly.
"Guy kind of surprised me there as I was trying to get out of bounds," Griffin said of the injury. "Kind of an unfortunate play."
Griffin added that he will "just monitor it and see how it goes," during the build-up to Week 2's contest.
Griffin completed 12 of 26 passes for 190 yards with zero touchdowns and an interception, with highlights coming in the form of long completions to Terrelle Pryor and Corey Coleman. It wasn't a game to write home about, but featured plenty of encouraging signs for a team that has been devoid of substance at the position for much of the last two decades.