NASHVILLE, Tenn. — Titans quarterback Marcus Mariota suffered a sprained medial collateral ligament in his left knee against the Dolphins, coach Ken Whisenhunt said on Monday, and his status for Sunday's game will be determined later in the week.
An MRI on Monday confirmed the results.
"He's walking around the facility today just fine,'' Whisenhunt said of Mariota. "As the week progresses we'll see how it goes and see if he has a chance to play."
The Titans face the Falcons on Sunday at Nissan Stadium.
Mariota was injured early in the second quarter of the team's 38-10 loss to the Dolphins when Miami defensive end Olivier Vernon dove and hit Mariota on the back of his left leg after he released the football.
Mariota finished the game with a brace on his left knee.
The Titans return to the practice field Wednesday. Whisenhunt said he'll decide through the course of the week how to divide practice field reps with Mariota and back-up quarterback Zach Mettenberger, who finished Sunday's game.
Mariota finished the game 21-of-33 for 219 yards and a touchdown, along with two interceptions. He posted a passer rating of 67.6.
In five games, Mariota has thrown for 1,239 yards, nine touchdown and five interceptions, with a 93.2 rating.
"From what I have seen of him walking around today, he is moving around fine,'' Whisenhunt said. "We have to see it on the field to be able to see what he can do.
"We are not going to do anything to put him in any kind of jeopardy. That will be determined with how he progresses during the week."
After Sunday's game, Mariota said he didn't have any issues with the low hit that injured him.
His teammates – and head coach – weren't nearly as forgiving.
Whisenhunt and tackle Taylor Lewan both said after the game they thought the hit "was BS."
On Monday, Whisenhunt said the hit "was low and it was late."
"The league has a mechanism for addressing those things,'' Whisenhunt said. "And I'm sure they will."