"He was one of the top scorers in Serie A last year and he was playing for the Under-21s some years ago and expected to take the step up to the senior team.
"So of course he's disappointed and I understand his frustration completely. He's been unlucky with some injuries as well so that doesn't help his situation.
"But no-one has lost faith in him. He is very popular and I know he wants to come back and score goals for us."