Matt Reynolds has been diagnosed with a slight tear of the ulnar collateral ligament in his left elbow. Reynolds will receive a second opinion, but the plan for now is to shut him down for six weeks before he can hopefully begin a throwing program. Of course, anytime the UCL is compromised, the possibility of Tommy John surgery is there. Either way, it's unfortunate for the D'Backs bullpen, as Reynolds holds a 1.98 ERA and 1.10 WHIP this season.