The striker has had an inconsistent start to the season.
"Am I ready to play as a second striker? Of course I am," he told the Gazzetta dello Sport. "If there is the need for it, then I'm also ready to play as a Trequartista which I did for a bit at Padova.
"I have a very good relationship with boss Allegri, who has been concerned about my health in recent weeks.
"I'm happy that he stayed with us."
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