Baylor quarterback Bryce Petty was diagnosed with having two cracks in the transverses processes of his back, CBSSports.com reported.

Despite the injury, Bryce is listed as day-to-day, and might play in Saturday's game against Northwestern State.

Petty, considered a preseason contender to win the Heisman Trophy, left at halftime of Baylor's 45-0 victory over SMU on Saturday. He completed 13 of 23 passes for 161 yards. When Petty left, he was grabbing his left hip.

An MRI revealed the two cracks on Monday

"I'm bummed out because it's never fun being hurt," Petty told CBSSports.com. "Bummed out because I just watched tape and everything is off. You never want to make any excuses. When you're throwing and I can't torque [it's frustrating]. Every time I went to throw it would jolt. It felt like somebody was punching me in my side."

FOXSports.com reported that Petty's injury is the kind that heals on its own. It becomes a matter of whether he can handle the pain in determining whether he can play.