Marrone admits the chance to play in his preferred position had a big influence in his decision to move.
"If I have to be honest, the role I prefer is playing in front of the defence," he said.
"I want to become an important part of this team and finally be able to demonstrate my worth," he continued.
"I thank the club for wanting me so much. My objective is to play with the regularity I did not have at Juventus."
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