He made his debut for Rangers in a 1–0 home win against Progrès Niederkorn in the Europa League first qualifying round first leg ten days later, coming on in the 77th minute in place of Martyn Waghorn. On 9 August, Morelos scored his first two Rangers goals in a 6–0 win over Dunfermline Athletic also at Ibrox in the second round of the Scottish League Cup. Three days later he scored his first goal in the Scottish Premiership, heading the team into an early lead in a 3–2 home loss to Hibernian. He quickly became a favourite with Rangers supporters, who nicknamed him El Bufalo.
