Driskel left Thursday's preseason game against the Colts with a right hand injury, Jay Morrison of the Dayton Daily News reports.
It's unclear whether the Bengals plan on keeping three quarterbacks as they did last season, but with trade rumors swirling around No. 2 signal caller AJ McCarron, Driskel's health could take on greater importance. For that reason, he'll likely be kept out of the rest of Thursday's game.