The USA international values the opportunity.
"Francesco is one of the best players who's ever played the game. The opportunity to play and train with him, be his teammate and become his friend has been incredible.
"You already have an idea of what sort of player he is, how good he is. But up close, when you play with him, he's so much better than people realise.
"He has the ability to see things no one else does, to make other players better. He's certainly one of the best players in the world.
"One of the best things has been his loyalty to Rome, the club. Obviously he had chances to leave, but always stayed true to what he feels and where he's from."