Both players have been linked with moves away from Roma this summer.
â€śDe Rossi is calm,â€ť Juan said. â€śHeâ€™s working with a great deal of enthusiasm and he has lots of quality.
â€śHe is a leader and we want him to continue with us.â€ť
While itâ€™s understood that De Rossi wants to remain in the Italian capital, Juventus-target Vucinic has asked for a transfer.
â€śHeâ€™s certainly working hard, but I canâ€™t really say any more about Vucinic than that,â€ť the South American noted. â€śI donâ€™t know what is going on in his head.â€ť