It’s very likely that the Titans will be out Ryan Tannehill (ankle) for this season

NASHVILLE, Tennessee — It’s “quite likely” that the Titans will be without a starting quarterback Ryan Tannehill Sources confirmed to ESPN on Wednesday that he is due for the remainder of the season due to a right ankle injury that will likely require surgery.

Tannehill was injured on Sunday, when the Los Angeles Chargers were knocked out by a linebacker Khalil Mac He landed on his right foot in Tennessee’s first offensive drive.

The team’s coaches took Tannehill to the locker room on a cart. The quarterback only missed one offensive streak and returned to the game with his right ankle badly strapped.

“We will never question his strength or his desire to come back and help us win,” coach Mike Vrabel said of Tannehill after the Titans lost 17-14.

The injury was in the same ankle that Tannehill injured in Week 6 against the Indianapolis Colts. Despite finishing that game, Tannehill missed the next two weeks, with a backup QB Malik Willis starting in place.

Willis took practically all of the first team’s shots on Tuesday and Wednesday. The Titans, who currently lead the AFC South at 7-7, also signed a veteran quarterback Joshua Dobbs to the active list on Wednesday.

With Tannehill unable to play, Dobbs would slip in as a backup with Willis as the starter.

The 7-7 Titans’ lead atop the AFC South, a division they’ve won the past two seasons, has dwindled to one with a four-game skid. They host Texas (1-12-1) on Saturday – the same team that Willis made his NFL debut against Oct. 30 in a 17-10 win. Tennessee finishes the regular season at home against the Dallas Cowboys and on the road in Jacksonville.

Tannehill has thrown for 2,536 yards and 13 touchdowns with six interceptions this season. NFL reporter Paul Koharski was first to report that he might be made for the season.

On Wednesday Tennessee also put up an offensive lineman Dillon Radons On injured reserve due to a knee injury he sustained in Sunday’s game against the Chargers.

Information from the Associated Press is included in this report.