3 XFL quarterbacks the Steelers should keep an eye on

The next Steelers QB could be playing in the XFL right now.

P.J. Walker, Houston Roughnecks

Mandatory Credit: Troy Taormina-USA TODAY Sports

Walker had an excellent first outing with the Roughnecks throwing for 272 yards and throwing four touchdowns. Walker showed off a lively arm and made some great throws on the run, extending the play with his feet.