The 19-year-old Uruguayan signed for United in the summer transfer window from Penarol.
Despite a number of impressive performances for the Under-23s this season, he is yet to make a first-team appearance for Ole Gunnar Solskjaer's side.
Pellistri will now look to gain first-team experience with an Alaves team who are currently in a relegation battle in Spain's top flight.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 13 | 11 | 1 | 1 | 26 | 8 | 18 | 34 |
| 2 | Arsenal | 13 | 7 | 4 | 2 | 26 | 14 | 12 | 25 |
| 3 | Chelsea | 13 | 7 | 4 | 2 | 26 | 14 | 12 | 25 |
| 4 | Brighton & Hove AlbionBrighton | 13 | 6 | 5 | 2 | 22 | 17 | 5 | 23 |
| 5 | Manchester CityMan City | 13 | 7 | 2 | 4 | 22 | 19 | 3 | 23 |
| 6 | Nottingham ForestNott'm Forest | 13 | 6 | 4 | 3 | 16 | 13 | 3 | 22 |
| 7 | Tottenham HotspurSpurs | 13 | 6 | 2 | 5 | 28 | 14 | 14 | 20 |
| 8 | Brentford | 13 | 6 | 2 | 5 | 26 | 23 | 3 | 20 |
| 9 | Manchester UnitedMan Utd | 13 | 5 | 4 | 4 | 17 | 13 | 4 | 19 |
| 10 | Fulham | 13 | 5 | 4 | 4 | 18 | 18 | 0 | 19 |
| 11 | Newcastle UnitedNewcastle | 13 | 5 | 4 | 4 | 14 | 14 | 0 | 19 |
| 12 | Aston Villa | 13 | 5 | 4 | 4 | 19 | 22 | -3 | 19 |
| 13 | Bournemouth | 13 | 5 | 3 | 5 | 20 | 19 | 1 | 18 |
| 14 | West Ham UnitedWest Ham | 14 | 4 | 3 | 7 | 18 | 27 | -9 | 15 |
| 15 | Leicester CityLeicester | 14 | 3 | 4 | 7 | 19 | 28 | -9 | 13 |
| 16 | Crystal Palace | 14 | 2 | 6 | 6 | 12 | 18 | -6 | 12 |
| 17 | Everton | 13 | 2 | 5 | 6 | 10 | 21 | -11 | 11 |
| 18 | Wolverhampton WanderersWolves | 13 | 2 | 3 | 8 | 22 | 32 | -10 | 9 |
| 19 | Ipswich TownIpswich | 14 | 1 | 6 | 7 | 13 | 25 | -12 | 9 |
| 20 | Southampton | 13 | 1 | 2 | 10 | 10 | 25 | -15 | 5 |
| > Premier League Full Table | |||||||||
