BEREA, Ohio — Third-string quarterback Thad Lewis is one day closer to starting for the Browns.

With Brandon Weeden and Colt McCoy not practicing again because of right shoulder injuries, Lewis worked with Cleveland’s first-team offense on Thursday as the Browns prepared for Sunday’s season finale against Pittsburgh.

Weeden and McCoy were hurt last week against Denver, and although coach Pat Shurmur has not ruled them out, it appears likely that Lewis will get his first NFL regular-season action.

Also, rookie running back Trent Richardson did not practice with a sprained left ankle and starting cornerback Sheldon Brown is out with a concussion.

Shurmur will likely rule players out following Friday’s practice if they’re going to miss the Steelers game.

Lewis has spent two seasons with Browns, but has yet to appear in a game.

“He’s got a live arm,” Shurmur said. “He’s very athletic. He’ll execute our offense the right way and I’m glad he’s going to, if he becomes the starter here, will have an opportunity. He’ll do a good job.”

The team signed free agent quarterback Josh Johnson, who would back up Lewis if Weeden and McCoy can’t play. Shurmur said the team considered signing Seneca Wallace, who started seven games in two seasons with Cleveland before he was released in training camp.

With Cleveland’s front office expected to make sweeping changes during the offseason, Sunday could be Shurmur’s final game with the Browns.