Dalton (thumb) was placed on injured reserve Monday.
The tests Dalton underwent Monday apparently revealed a major issue with his right thumb, prompting the Bengals to move him to IR at a juncture of the season in which he won't be eligible to return. Jeff Driskel is left as the team's top quarterback, with Cincinnati scooping Tom Savage off waivers from the 49ers to provide depth. Dalton doesn't exactly elevate the players around him, but his absence is still a major blow to every other piece of the Cincinnati offense, including running back Joe Mixon and wideouts Tyler Boyd and A.J. Green (toe).