Big things are expected at Roma from the young Argentine.
"We are very happy, but we already knew the value of the player and we've made a sacrifice to bring him to Rome, but you have to give him time," said Fenucci.
"But his performance is reassuring."
On Daniele de Rossi's contract talks, Fenucci added: "We began in the summer. There's some new demands, but we want to find a solution."