Tennessee Titans fans are holding their breath. 

Head coach Mike Vrabel said Monday that quarterback Marcus Mariota is dealing with a stinger, which makes it uncertain whether he will be able to play Sunday night against the Indianapolis Colts with a wild card spot on the line. 

Mariota was injured in Saturday's win over the Washington Redskins late in the first half and did not return.

“We’ll see kind or where (Mariota) is at (Monday). We are going to do a little bit of individual work on the field and see if he can do any of that stuff, and then we’ll kind of keep moving on towards the end of the week and make sure he can do everything that we ask our quarterbacks to do," Vrabel said.

“He feels a lot better than what he did after (suffering injuries against the Dolphins and Colts earlier this season), after talking to him this morning,” Vrabel added.

Gabbert came off the bench and went 7-for-11 for 101 yards and one touchdown to help lead Tennessee to a 25-16 victory. 

The victory was the Titans' first in the seven games that Mariota has left with an injury.