Harper hit 42 of those homers last season while winning his first NL MVP award despite the Nationals falling short of the playoffs .
Harper is the eighth - youngest player to hit 100 homers at 23 years and 181 days old .
player hit 42 of those homers last season while winning Harper 's first NL MVP award despite the Nationals falling short of the playoffs .
Harper is the eighth - youngest player to hit 100 homers at 23 years and 181 days old .