Brian Hoyer's status remains unknown heading into Sunday's game at Tennessee.
Hoyer, who has not passed the league's concussion protocol, will be meeting with independent doctors for further evaluation. Head coach Bill O'Brien did not speculate on Hoyer's chances for returning to the starting lineup but hopes to know more soon.
"I think it has more to do with how the independent doctors evaluate him and how our training staff works with them as far as the evaluations and I think we'll know something better after tomorrow," O'Brien said Monday.
Hoyer suffered his second concussion of the year in the Dec. 13 game against New England. He was also dealing with a neck strain and wrist issue after the game. Hoyer also exited in the Texans Week 10 matchup at Cincinnati with a concussion and subsequently missed the following week against the Jets.
With T.J. Yates placed on injured reserve, the Texans will likely look to Brandon Weeden to start at Tennessee if Hoyer isn't cleared. Houston also signed quarterback B.J. Daniels on Monday from the Seattle practice squad.
The (7-7) Texans travel to Tennessee to face the (3-11) Titans on Sunday at noon CT.
The Texans faced the Colts at Lucas Oil Stadium in Week 15.