MILWAUKEE — Miami Marlins right-hander Sandy Alcantara has a sprained ulnar collateral ligament in his elbow, manager Skip Schumaker said Wednesday, casting doubt on whether last year’s NL Cy Young Award winner can pitch again this season. Schumaker did not say whether he thought Alcantara would return. Miami is fighting for a wild-card spot. UCL injuries frequently require Tommy John ligament-replacement surgery. Alcantara’s injury was initially reported as a forearm strain after his last start on Sept.