Which Yankees player was nicknamed "Donnie Baseball"?

Which slugger won MVP awards in both the National and American Leagues, the first to do so? Which Tigers slugger missed years for military service and hit 58 home runs in 1938? Which Indians pitcher, nicknamed "Rapid Robert," led the league in strikeouts seven times? Which Red Sox slugger missed nearly five seasons serving as a pilot in World War II and Korea? Which Mets pitcher was nicknamed "Doc" and won the 1985 Cy Young at age 20? Which Mets outfielder was nicknamed "Straw"? Which Mets batter's ground ball went through Bill Buckner's legs in the 1986 World Series? Which Mets first baseman, now a broadcaster, was featured in a famous 'Seinfeld' episode?