Jacksonville Jaguars quarterback Blaine Gabbert left in the first quarter of Sunday's 43-37 overtime loss to the Houston Texans with an elbow contusion and did not return.
The Jaguars initially labeled Gabbert's return as probable before downgrading him to questionable.
Gabbert was hurt on the Jaguars' first series when he was sacked and subsequently fumbled. Chad Henne replaced him on the Jaguars' ensuing offensive series.