Dee ihe na-aga n'ihu maka paragraf a - Onye nchịkwa Zinedine Zidane kwalitere Mariano n'ụzọ doro anya na ndị isi egwuregwu na 20 August 2016, mgbe ọ merụrụ onye na-agba ọsọ Karim Benzema. Otu izu ka e mesịrị, Mariano mere egwuregwu mbụ ya n'oge mmeri 2 na 1 meriri Celta de Vigo, dochie Álvaro Morata na nkeji 77. N'abalị iri abụọ na isii n'ọnwa Ọktoba, ọzọ site na bench, o nyere goolu mbụ ya maka "Merengues" iji mechie mmeri 7-1 na Cultural y Deportiva Leonesa na Copa del Rey. N'agba nke abụọ, ọ gbakwunyere hat-trick maka mmeri 13<unk>2, gụnyere ihe mgbaru ọsọ nke 23 nke abụọ nke bụ ihe mgbaru ọsọ kachasị ọsọ nke otu ya na asọmpi ahụ. Mariano gbara goolu mbụ ya n'elu ụgbọ elu na 10 Disemba, na-eme ka mmeri nke 3x2 na-emeri n'ụlọ Deportivo de La Coruña. N'ọnwa ahụ, ọ so na ndị otu meriri iko mbaụwa FIFA Club World Cup 2016
na Japan, mana apụtaghị na egwuregwu Real Madrid ọ bụla. Mariano gbara egwuregwu asatọ mgbe Madrid meriri La Liga nke afọ 2016/17. Ọ bụ onye nkwado mgbe Madrid meriri 2016 <unk> 17 UEFA Champions League.