Ex-Yankee Mike Mussina joins Mariano Rivera in Hall of Fame class

Mariano Rivera won’t be the only ex-Yankee joining the Baseball Hall of Fame this summer — his longtime teammate Mike Mussina will also be enshrined, though Mussina might enter Cooperstown wearing an Orioles cap on his plaque. Mussina, who played for the Yankees from 2001 until he retired after the 2008 season, was named on…