The 23-year-old, who spent the second half of last season on loan at Tours, joins the Ligue 1 outfit for an undisclosed fee.
Delort failed to score in 11 appearances for the Latics last term, but found the net twice in eight games for Tours.
The forward has earned one cap for France at Under-20 level.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Paris FCParis FC | 15 | 9 | 4 | 2 | 24 | 11 | 13 | 31 |
| 2 | Lorient | 15 | 9 | 3 | 3 | 28 | 15 | 13 | 30 |
| 3 | Metz | 15 | 8 | 4 | 3 | 24 | 13 | 11 | 28 |
| 4 | DunkerqueDunkerque | 15 | 9 | 1 | 5 | 23 | 20 | 3 | 28 |
| 5 | Annecy | 15 | 7 | 5 | 3 | 23 | 18 | 5 | 26 |
| 6 | GuingampGuingamp | 15 | 8 | 1 | 6 | 25 | 19 | 6 | 25 |
| 7 | AmiensAmiens | 15 | 7 | 2 | 6 | 19 | 18 | 1 | 23 |
| 8 | Laval | 15 | 6 | 4 | 5 | 22 | 16 | 6 | 22 |
| 9 | Rodez AFRodez AF | 15 | 5 | 4 | 6 | 28 | 25 | 3 | 19 |
| 10 | Bastia | 15 | 3 | 10 | 2 | 13 | 13 | 0 | 19 |
| 11 | PauPau | 15 | 5 | 4 | 6 | 17 | 19 | -2 | 19 |
| 12 | Grenoble | 15 | 5 | 3 | 7 | 17 | 17 | 0 | 18 |
| 13 | Clermont | 15 | 4 | 4 | 7 | 13 | 18 | -5 | 16 |
| 14 | Caen | 15 | 4 | 3 | 8 | 17 | 21 | -4 | 15 |
| 15 | Ajaccio | 15 | 4 | 3 | 8 | 10 | 16 | -6 | 15 |
| 16 | Troyes | 15 | 4 | 3 | 8 | 11 | 19 | -8 | 15 |
| 17 | Red Star | 15 | 4 | 3 | 8 | 13 | 27 | -14 | 15 |
| 18 | Martigues | 15 | 2 | 3 | 10 | 8 | 30 | -22 | 9 |
| > Ligue 2 Full Table | |||||||||
