Jaguars QB Blaine Gabbert left Sunday's game with a hamstring injury and did not return.
Gabbert threw for one touchdown and two interceptions before the injury forced him from the game in the third quarter, with his team trailing the St. Louis Rams 13-24. Backup QB Chad Henne, who started two games this year while Gabbert overcame a hand injury, completed the game. The Jaguars would go on to lose 20-34.
Jaguars coach Gus Bradley told reporters that the starting job will remain Gabbert's if he is healthy.
The Jaguars lost rookie left tackle Luke Joeckel for the season to an ankle injury earlier in the game.