Carson Wentz will undergo further evaluation on his right ankle after injuring it in the Indianapolis Colts' loss to the Los Angeles Rams on Sunday.
Wentz suffered the injury when he tried to scramble and was taken to the ground by Aaron Donald on third down with less than eight minutes left in the game.
"He rolled it up pretty bad," Frank Reich said. "I had a sense when he walked off the field. It didn't look good. Sometimes if you go back in right away when it's still warm you can maybe gut out a few more plays. The longer we were off the field, it stiffened up and he tried, but there was no chance."
The Colts will face the Tennessee Titans in Week 3.