Pep Guardiola was delighted for Gabriel Jesus after the Brazilian's hat-trick against Dinamo Zagreb on Wednesday.
Jesus spearheaded a ruthless 4-1 win for Manchester City at the Etihad.
"I am incredibly delighted for Gabby," Guardiola said.
"Strikers need goals, he scored three. Hopefully can help with his mood to be incredibly positive.
"He is an incredible fighter, in the way he helps to defend and do everything. It was important for him, for the team, for everyone."