Nottingham Forest have been warned that Gustavo Scarpa "might need some time" to adapt to the physical rigours of English football.
Scarpa is set to arrive at the City Ground in January after he signed a pre-contract agreement to join the Reds from Brazilian club Palmeiras in the summer.
His presence in the East Midlands is eagerly awaited after he netted 13 goals and claimed 15 assists across all competitions, helping his side win the league title in his homeland.