Position: Tight End
Walker is questionable to return to Saturday's preseason game at Oakland. According to CBS reporter Tracy Wolfson, Walker "didn't feel right" and "couldn't catch his breath."
Gallik had his knee scoped Wednesday, Terry McCormick of TitanInsider.com reports.
Position: Wide Receiver
Wright (hamstring strain) is expected to miss Saturday's preseason game against the Raiders, the Tennessean reports.