MIAMI -- Chad Henne's knee hurt, and he felt badly for Chad Pennington, too.

Injuries sidelined the Miami Dolphins' top two quarterbacks Sunday. Pennington's season debut lasted only two plays before he departed with another injury to his troublesome right shoulder, and Henne hurt his left knee in the third quarter.

Tyler Thigpen finished the Dolphins' 29-17 victory over Tennessee, and he may be the starter by default Thursday against Chicago.

The 34-year-old Pennington has undergone shoulder surgery three times, most recently last year after he was injured in Game 3. He hadn't played since, and now the Dolphins wonder if he'll be able to play again.

"For him to have another shoulder problem, it's tough," Henne said. "I'm sure he's going to have some decisions to make when he finds out what's going on.

"We're stuck with this situation. We'll see what happens."

Henne hurt his left knee when hit by 305-pound defensive tackle Tony Brown as he threw an incompletion. He walked off the field and was scheduled to undergo an MRI exam.

"It doesn't feel good," Henne said. "But if I can stand it, if I can run on it, I'm going to play. We'll see what happens. I'm not going to be one to baby my knee. If I can be out there, I'll be out there."

A source told ESPN NFL Insider Adam Schefter that the Dolphins are planning to work out several quarterbacks in Miami on Monday, including former Broncos QB Tom Brandstater.

A source told ESPN Senior NFL Analyst Chris Mortensen that former Redskins and Saints QB Patrick Ramsey will try out Monday.

Information from The Associated Press contributed to this report.