“He’s able to be physically active, there’s just some restrictions in regard to being able to participate in some of the full team activities ,” McVay said, via Stu Jackson of the team’s website.

Matthew Stafford participated in a preseason practice for the first time Monday after dealing with an aggravated disk in his back, multiple outlets reported.

If Stafford isn't fully ready to go by Week 1, veteran backup Jimmy Garoppolo would be in line to replace him.