Rubuta ci gaba don wannan sakin layi - Asamoah da abokin aikinsa na Udinese Mauricio Isla duk sun koma Juventus a watan Yulin 2012 kan yarjejeniyar mallakar mallakar, tare da Juventus ta biya Yuro miliyan 9 don 50% na kwangilar Asamoah. Ya fara bugawa a ranar 11 ga Agusta 2012 a kan Napoli a cikin 2012 Supercoppa Italiana
, ya zira kwallaye yayin da Juventus ta ci nasara 4<unk>2 bayan karin lokaci. Saboda rawar da ya taka a wasan da suka buga da Napoli, Antonio Conte, wanda shi ne kocin Juventus a lokacin, ya yanke shawarar fara shi a wasan farko na gasar 2012-13 kakar, da Parma, a ranar 25 ga watan Agusta: ya yi tasiri nan take, ta hanyar kafa burin Stephan Lichtsteiner a cikin nasarar gida 2 <unk> 0. A ranar 16 ga Satumba, ya zira kwallaye na farko tare da sabon kulob dinsa a gasar cin kofin Lig da suka ci Genoa da ci 3-1. Juventus ya ci gaba da lashe gasar Serie A a wannan kakar. Juventus ta sayi Asamoah kai tsaye a watan Yunin 2013, inda ya sanya hannu kan yarjejeniyar shekara hudu tare da kungiyar.