C.J. Gardner-Johnson hurts knee

Lions DB C.J. Gardner-Johnson was carted off the practice field Monday morning after suffering a non-contact knee injury, according to multiple reports. We'll await an official diagnosis, but this obviously sounds pretty serious. A healthy Gardner-Johnson would be a candidate for both the primary slot CB role and some safety work. We'll see about Detroit's defensive plans going forward.

Update: NFL Network's Tom Pelissero reports that the injury doesn't appear to be serious, according to team sources.