The Cincinnati Bengals already faced a tough road to make the postseason with five games remaining in the regular season.
While the team did not disclose specifics of the injury, NFL Network Insider Ian Rapoport reported that Dalton suffered torn ligaments in the thumb and it is unclear at this time if surgery is required.
Dalton has two non-guaranteed years remaining on the six-year extension he signed in 2014. He's due $16.2 million in 2019 and $17.7 million in 2020 (plus possible escalators), per NFL Network's Tom Pelissero. He finished the 2018 season completing 226 of 365 passes for 2,566 yards and 21 touchdowns with 11 interceptions.