After an anxious weekend filled with uncertainty, the Colorado Rockies finally received some good news regarding rookie closer Seth Halvorsen. Interim manager Warren Schaeffer confirmed Monday that Halvorsen has a mild flexor strain in his right elbow and will not require surgery — a significant sigh of relief for a team that feared the worst. “He might be able to pitch again this season,” Schaeffer said, following Halvorsen’s MRI results. Halvorsen exited Saturday’s 8-5 win over the Pittsburgh Pirates after throwing just five pitches in the ninth inning, visibly wincing after a 99 mph fastball.