Matt McGloin

One day after Matt McGloin left Oakland's season-ending loss early with a shoulder injury, coach Jack Del Rio doesn't know who his starting quarterback will be come Saturday.

"We'll see how the week goes," Del Rio told reporters Monday. "Between Connor Cook and Matt (McGloin), we'll see who can get the most reps and who we feel the most comfortable putting in the game."

Del Rio confirmed that McGloin got an MRI and defined his status as "just sore."

NFL Network Insider Ian Rapoport reported that the Raiders are not optimistic about McGloin playing against the Texans, but have not ruled him out. In other news, the team has signed free agent Garrett Gilbert to the practice squad, and the signal caller could be active for the playoff game.