Philadelphia Eagles quarterback Josh McCown was visibly limping throughout the second half of his team’s wild-card playoff loss to Seattle. Now, we know why.

According to multiple reports, McCown was playing with a torn hamstring. The injury reportedly happened in the second quarter. McCown is 40 and was coaxed out of retirement by the Eagles at the start of the season to serve as the backup to Carson Wentz.

McCown entered the game in the first quarter after Wentz suffered a concussion. Philadelphia did not have an active third quarterback, so McCown stayed in the game. He played fairly well, completing 18 of 24 passes for 174 yards, but was sacked six times.

McCown isn’t the first player to keep playing through a painful injury and he won’t be the last. Here’s a look at nine other players who continued playing through serious injuries:

Steve McNair

In a Sept. 26, 2004 game against the Jaguars, the Tennessee Titans quarterback suffered a bruised sternum. McNair spent two nights in the hospital, but returned to play in five more games before finally agreeing to have surgery.