Rubuta ci gaba ga wannan sakin layi - Harper ya buga gidaje biyu a kan Miami Marlins a ranar budewa na kakar 2013. Yana da shekaru 20, ya zama ɗan ƙaramin ɗan wasa na manyan wasannin da ya buga gida biyu a wasan farko na ƙungiyarsa a kakar wasa ta bana. An zabe shi a matsayin mai farawa don MLB All-Star Game
, zabinsa na biyu na All-Star.