For a hitter as good as Bryce Harper, 100 home runs is far from an unexpected achievement. The 2012 National League Rookie of the Year and reigning NL Most Valuable Player will no doubt hit many more in his career. But Harper’s April 14 grand slam in the Nationals’ 6-2 win over the Atlanta Braves placed the 23-year-old among the youngest to reach the century mark in baseball history. Only seven players did it at a younger age, led by New York Giants slugger Mel Ott at 22 years, 122 days. Harper’s 100th home run carried a little extra significance. It also was the first grand slam of his career. Harper is the first player in baseball history to hit his first grand slam for his 100th career home run. But Harper wasn’t done. He homered in each of Washington’s next three games over the weekend as they took two of three from the Philadelphia Phillies.