Walker struggled in relief in Week 12 against the Broncos after starter Dorian Thompson-Robinson left the 29-12 loss early due to a concussion. Thompson-Robinson remains in concussion protocol, and even if he isn't cleared in time to play Sunday against the Rams, Flacco would get the start, with Walker backing up the 38-year-old. Flacco will presumably be elevated from the practice squad prior to Sunday, regardless of Thompson-Robinson's status.
It was a poor day overall for Cleveland quarterbacks, as the duo of Thompson-Robinson and Walker combined for a 47.6 percent completion rate, a 4.5 YPA and just 190 total passing yards. The 28-year-old former Panther has seen significant action in four games this season, managing only one TD pass while committing seven turnovers, but if Thompson-Robinson isn't able to clear the league's concussion protocol by next Sunday, Walker will be the Browns' only option under center in Week 13 against the Rams.
Thompson-Robinson got the first start when Watson missed time earlier this season, but the Browns quickly turned to Walker after the rookie tossed three interceptions in a 28-3 loss to the Ravens in Week 4. The veteran wasn't much better in the following weeks, continuing the trend of frequent interceptions (five in three starts) even as the Browns won two of his three outings. Walker offers mobility and arm strength but not much else, having thrown six TD passes and 16 picks on 326 career attempts (54.9 percent completions, 6.4 YPA). It's nonetheless possible he makes more starts before the end of the year, given that Thompson-Robinson looked unready for the NFL last time we saw him.
Watson will make just his second start since Week 3. The last time Watson returned from his injury, he aggravated it in Week 7 against the Colts, so Walker wound up playing most of that game. Barring another injury to Watson, Walker likely won't play again this season.
Walker -- who was signed to the Browns' 53-man roster earlier Wednesday -- will make his second start of the season and should be in store for his third extended outing in a row while Deshaun Watson focuses on rehabbing his injured throwing shoulder. After Watson missed the final three quarters of the Week 7 game against the Colts upon experiencing a setback with the shoulder injury that had kept him out for the previous two games, Walker came on in relief and completed 15 of 32 pass attempts for 178 yards and one interception in the Browns' 39-38 win. The Browns have won both of the games that Walker has appeared in this season, but it's largely been on the strength of the defense and kicking game rather than the quarterback, who has completed just half of his passes for 5.6 yards per attempt while throwing three picks.