The 18-year-old has signed a five-year deal with the Serie A club for around £550,000.
The Brazilian has now joined up with the team for their pre-season tour of Switzerland.
Roma will start the new campaign with Zdenek Zeman in charge following the departure of Luis Enrique after just one season at the Stadio Olimpico.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| C | Inter Milan | 34 | 28 | 5 | 1 | 81 | 18 | 63 | 89 |
| 2 | AC Milan | 34 | 21 | 7 | 6 | 64 | 39 | 25 | 70 |
| 3 | Juventus | 34 | 18 | 11 | 5 | 47 | 26 | 21 | 65 |
| 4 | Bologna | 35 | 17 | 13 | 5 | 49 | 27 | 22 | 64 |
| 5 | Roma | 34 | 17 | 8 | 9 | 61 | 41 | 20 | 59 |
| 6 | Atalanta BCAtalanta | 33 | 17 | 6 | 10 | 61 | 37 | 24 | 57 |
| 7 | Lazio | 34 | 17 | 4 | 13 | 43 | 35 | 8 | 55 |
| 8 | Fiorentina | 33 | 14 | 8 | 11 | 50 | 37 | 13 | 50 |
| 9 | Napoli | 34 | 13 | 11 | 10 | 52 | 43 | 9 | 50 |
| 10 | Torino | 35 | 11 | 14 | 10 | 31 | 31 | 0 | 47 |
| 11 | Monza | 34 | 11 | 11 | 12 | 36 | 44 | -8 | 44 |
| 12 | Genoa | 34 | 10 | 12 | 12 | 38 | 40 | -2 | 42 |
| 13 | Lecce | 34 | 8 | 12 | 14 | 31 | 49 | -18 | 36 |
| 14 | CagliariCagliari | 34 | 7 | 11 | 16 | 36 | 59 | -23 | 32 |
| 15 | Hellas VeronaHellas Verona | 34 | 7 | 10 | 17 | 31 | 45 | -14 | 31 |
| 16 | FrosinoneFrosinone | 34 | 7 | 10 | 17 | 43 | 63 | -20 | 31 |
| 17 | Empoli | 34 | 8 | 7 | 19 | 26 | 50 | -24 | 31 |
| 18 | Udinese | 34 | 4 | 17 | 13 | 32 | 51 | -19 | 29 |
| 19 | SassuoloSassuolo | 34 | 6 | 8 | 20 | 40 | 70 | -30 | 26 |
| R | Salernitana | 34 | 2 | 9 | 23 | 26 | 73 | -47 | 15 |
| > Serie A Full Table | |||||||||
