NASHVILLE, Tenn. (AP) — Jake Locker and Matt Cassel might never leave the sidelines Thursday night with a pair of rookie quarterbacks possibly getting the chance to start.

Titans coach Ken Whisenhunt says if his starters play in the preseason finale, it won't be for long.

The Titans and Minnesota Vikings are just trying to wrap up the preseason safely, so they can turn their attention to the start of the regular season on Sept. 7.

The Vikings may give Christian Ponder his biggest chance to play this preseason. The 12th overall selection in 2011 has thrown only seven passes, and a good showing could entice a quarterback-needy team to make a call to Minnesota for the former starter.

Titans rookie Zach Mettenberger leads all NFL quarterbacks this preseason throwing for 504 yards.