Marlins’ right-hander Sandy Alcantara won the National League Cy Young Award unanimously, the 15th time a pitcher in the NL has swept the voting. Alcantara joins a list featuring Sandy Koufax three times (1963, ‘65-66), Greg Maddux twice (1994-95) and once each by Clayton Kershaw (2014), Roy Halladay (2010), Jake…