26kii Maajo 2015, Ambríz waxaa loo xaqiijiyay inuu yahay tababaraha cusub ee Club América, isagoo saxiixay qandaraas laba sano ah. Wuxuu hogaamiyay América si uu u helo orod niyad jab leh Koobka Adduunka ee FIFA Club, isagoo ku guuldareystay wareega afar dhamaadka kooxda Shiinaha ee Guangzhou Evergrande, wuxuuna ka adkaaday kooxda reer Congo ee TP Mazembe si uu ugu guuleysto kaalinta shanaad ee tartanka. Sanadkii xigay, Ambríz wuxuu América u horseeday finalka CONCACAF Champions League, isagoo ka adkaaday Tigres UANL 4<unk>1 wadarta guud, sidaas darteedna wuxuu ku guuleystay inuu u qalmo Koobka Adduunka ee FIFA Club 2016
Waxaad Bishii Sebtember, waxaa lagu qiimeeyay inuu yahay tababaraha 10aad ee ugu fiican sida ku xusan "Tababarka Tababaraha Kubadda Cagta Adduunka". Bishii Sebtember 17, ka dib markii ay guuldarro ka soo gaartay 2 <unk> 0 gurigeeda León, Ambríz waxaa laga ceyriyay macalinka maalintii xigtay.