By Matt Hladik During his long and illustrious MLB career, Cal Ripken Jr. competed against dozens of Hall of Fame players. Ripken also had the chance to share the diamond with a number of stars who have not been enshrined, but arguably have the credentials to be in Cooperstown. On Tuesday, the Baltimore Orioles legend revealed the one former adversary who he feels has been snubbed by Hall of Fame voters: former New York Yankees first baseman Don Mattingly. Mattingly spent his entire career with the Yankees from 1982-95, winning the 1985 American League MVP Award and earning nine Gold Gloves. H…