 On 2 October, Dybala scored a hat-trick in a 3–0 home win over Young Boys in the Champions League.In Juventus's following Champions League group match on 23 October, Dybala scored the only goal of the game in a 1–0 away win over Manchester United.With the arrival of Cristiano Ronaldo, Dybala was often deployed out of position in a deeper role by manager Allegri during the 2018–19 season; as a result of this positional switch, as well as struggles with injuries, and difficulties with his manager, Dybala suffered a loss of form, and his goalscoring output decreased significantly, as he managed to score only five goals in 30 league matches, and 10 goals across 42 appearances in all competitions.