Browns QB Deshaun Watson carted off field after suffering non ...

Browns quarterback Deshaun Watson was carted off the field in the second quarter of Sunday's 21-14 loss to the Bengals after suffering what is feared to be a season-ending torn Achilles injury, NFL Network Insider Ian Rapoport reported.

Watson abruptly fell forward to his knees after dropping back to pass on the play. Slo-mo replays appeared to show something pop on his lower right calf, and Watson stayed hunched over on his knees for some time as the Browns' medical staff gave him attention on the field.

The Browns announced after halftime that Watson would not return after suffering an Achilles injury.

Cincinnati held a 7-0 lead over Cleveland upon Watson's exit.

Dorian Thompson-Robinson entered the game upon Watson's exit, filling in on an afternoon where the Browns declared Jameis Winston inactive as the team's emergency third QB. The second-year QB went on to lead the Browns' first scoring drive of the afternoon, which ended on a Nick Chubb touchdown run -- the running back's first in 398 days. A missed PAT prevented Cleveland from tying the game, however.

Thompson-Robinson later suffered a finger injury in the fourth quarter and was replaced by Winston.

Watson was having his most efficient game of the season before the injury, completing 15 of 17 passes for 128 yards.