Tony Romo suffered an apparent back injury during the Dallas Cowboys' preseason game against the Seattle Seahawks Thursday, according to Bleacher Report, and was forced to leave the game after the first quarter. Greg Bell of the News Tribune reported the injury from the scene, noting that defensive end Cliff Avril tackled him from behind.

Fortunately, Romo did walk off the field himself, according to Bob Condotta of the Seattle Times. Dak Prescott came in as his replacement.

Romo had a spate of injuries last season, causing the Cowboys' record to suffer any time he wasn't on the field. At 36 years old, Romo's increasing tendency for injuries has been bad news for the team. Despite that, managers sounded optimistic about him earlier in the season.

"He’s looking good. We had two practices where we’ve been out here on the field with the guys and he’s done everything," said quarterbacks coach Wade Wilson. "He’s throwing, he’s got good velocity on all of his throws, great movement in his legs. He looks like he’s re-energized because he hadn’t played, you know, missed the majority of the season. So he’s real energized and anxious to get going."