Two of the Eagles most important offensive players exited Friday's practice early with injuries after borderline dirty hits by two rookie defenders.
Wide Receiver Jordan Matthews attempted to catch a pass along the sideline during full-team drills late in Friday's session.
Earlier, tight end Zach Ertz went to make a reception and rookie defensive back Blake Countess went somewhat low on the tight end.
According to the story, Matthews stayed down for several seconds before heading back inside with trainers with a noticeable limp in his step. Eagles head coach Doug Pederson said after practice that Ertz was undergoing evaluation for a concussion.