By Daniel Bates 17 years later, Mr. National is calling it a career. On Tuesday, Washington Nationals third baseman Ryan Zimmerman announced his retirement from Major League Baseball. He was the first draft pick in Nationals team history and spent the entirety of his career in D.C.. A two-time All-Star, two-time Silver Slugger Award winner, Gold Glover and World Series champion; Ryan Zimmerman was a model of consistency for the Washington’s franchise. The 37-year-old finishes his career as the Nationals career leader in hits, home runs, RBI and games played. Zimmerman helped build Washington f…