Dallas Cowboys rookie Jaydon Blue, slotted as the No. 3 running back for the team's preseason opener against the Los Angeles Rams, exited Thursday's practice with a lower body injury.

The Texas rookie was expected to be a home run threat. But after some early questions about toughness, he's showing power between the tackles, too.

Dallas Cowboys rookie running back Jaydon Blue left practice Thursday with what appeared to be a lower body injury after being examined by medical staff. Blue was reportedly slow to get up, but limped out of the medical tent under his own power and is not expected to return to practice,