Tennessee Titans quarterback Marcus Mariota is battling his second knee injury of the 2015 season.
Mariota was forced from Sunday's game in the second quarter with a right knee injury. He did not return to the game, giving way to Zach Mettenberger.
The rookie signal-caller took a hit from Patriots linebacker Jamie Collins when running back Antonio Andrews missed a block.
Although the injury does not appear to be serious, the Titans opted to stick with Mettenberger for the final two quarters versus a New England pass rush winning the battle at the line of scrimmage. Mariota was fitted for several different braces and was seen jogging on the sideline to test the knee.