Justin Thorpe was back in his pads and red jersey, and on the turf Friday at James Madison.
Thorpe's status had been in question after he left Wednesday's scrimmage with a shoulder injury.
Coach Mickey Matthews said Friday that Thorpe, a redshirt freshman competing with junior Drew Dudzik for JMU's starting quarterback position, had suffered a "tiny, tiny tear" in his throwing shoulder.
Matthews added that Thorpe will play in JMU's next scrimmage Saturday morning.
But sophomore running back Corwin Acker won't be playing Saturday, Matthews said.
Acker spent Friday afternoon's practice watching with a football in his hands, after suffering what Matthews called "a small chip" in his collarbone in Wednesday's scrimmage.
"If we had a game today, he could play," Matthews said, adding that he expects Acker to resume practice Monday, but with limited contact.