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Silver Slugger Award. Washington Nationals general manager Mike Rizzo holds Ryan Zimmerman's Silver Slugger Award. The Silver Slugger Award is awarded annually to the best offensive player at each position in both the American League and the National League, as determined by the coaches and managers of Major League Baseball (MLB).
Harper won the NL Rookie of the Year Award in 2012. He tied for the NL lead in home runs in the 2015 Major League Baseball season, and was named the National League Most Valuable Player for 2015 by unanimous decision of the Baseball Writers' Association of America.