As Rapoport notes, this likely explains why Callaway has been running with the reserves during training camp up to this point. After a terrific rookie season, Callaway has taken a major step back . First, it was being behind Odell Beckham and Jarvis Landry and now he will miss the first quarter of the season. Tough to buy too much stock into Callaway considering all the other talent Baker Mayfield has to throw to. He’s worth a flyer, but not much lore than that at this stage.