The reigning NL MVP hit the mark Thursday with his third-inning slam at home against Atlanta.
Harper got to 100 homers at 23 years and 181 days old. Hall of Famer Mel Ott was more than a full year younger when he became the youngest to do it.
The homer was Harper’s third of the season and gave the Nationals a 4-1 lead. He turned on a fastball from Julio Teheran and sent it sailing over the out-of-town scoreboard in right field.
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