Carolina Panthers head coach Ron Rivera announced on Monday that Cam Newton would continue to work with team trainers and rehab this week. That means quarterback Kyle Allen will start on Sunday against the San Francisco 49ers. The report comes via Joseph Person of The Athletic and Adam Schefter of ESPN.

The Panthers signed Allen as an undrafted free agent out of Houston in 2018. He has completed 80-of-122 attempts (65.6 percent) for 901 yards with seven touchdowns and no interceptions through four starts this season.

Allen has completed 65.4 percent of his passes for 1,167 yards with nine touchdowns and no interceptions through his two NFL seasons.

Allen is 4-0 as a starter this season and will go against an undefeated 6-0 San Francisco team at Levi's Stadium on Sunday. The 49ers defense ranks No. 2 in points allowed and No. 1 in total yards allowed.