Joshua Dobbs will start at quarterback for the Tennessee Titans in Saturday's game against the Jacksonville Jaguars.
Head coach Mike Vrabel announced the decision on Monday. The winner of the game will secure the AFC South while the loser will miss the playoffs.
"I just think he gives us the best chance right now," Vrabel told reporters.
Starting quarterback Ryan Tannehill re-injured his right ankle in a Dec. 18 game against the Los Angeles Chargers and hasn't played since. The Titans have since placed him on injured reserve, effectively ending his season.