The 27-year-old wore a Gala shirt as he posed for pictures on Monday after sealing a switch that is expected to net Lille around £6m.
Chedjou made 34 Ligue 1 appearances last season, scoring three goals.
He has been capped 14 times at senior international level.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | GalatasarayGalatasaray | 36 | 32 | 3 | 1 | 89 | 24 | 65 | 99 |
| 2 | Fenerbahce | 36 | 29 | 6 | 1 | 92 | 31 | 61 | 93 |
| 3 | TrabzonsporTrabzonspor | 36 | 19 | 4 | 13 | 64 | 48 | 16 | 61 |
| 4 | Istanbul BasaksehirIstanbul | 36 | 17 | 7 | 12 | 51 | 40 | 11 | 58 |
| 5 | BesiktasBesiktas | 36 | 16 | 7 | 13 | 49 | 43 | 6 | 55 |
| 6 | KasimpasaKasimpasa | 36 | 15 | 7 | 14 | 60 | 64 | -4 | 52 |
| 7 | AlanyasporAlanyaspor | 36 | 12 | 14 | 10 | 51 | 48 | 3 | 50 |
| 8 | Caykur RizesporCaykur Rizespor | 36 | 14 | 7 | 15 | 48 | 56 | -8 | 49 |
| 9 | SivassporSivasspor | 36 | 12 | 12 | 12 | 42 | 52 | -10 | 48 |
| 10 | AntalyasporAntalyaspor | 36 | 11 | 12 | 13 | 41 | 47 | -6 | 45 |
| 11 | Adana Demirspor | 36 | 10 | 14 | 12 | 51 | 53 | -2 | 44 |
| 12 | Samsunspor | 36 | 11 | 9 | 16 | 40 | 48 | -8 | 42 |
| 13 | KayserisporKayserispor | 36 | 11 | 11 | 14 | 41 | 53 | -12 | 41 |
| 14 | KonyasporKonyaspor | 36 | 9 | 13 | 14 | 37 | 48 | -11 | 40 |
| 15 | AnkaragucuAnkaragucu | 36 | 8 | 15 | 13 | 44 | 48 | -4 | 39 |
| 16 | GaziantepGaziantep | 36 | 10 | 8 | 18 | 46 | 56 | -10 | 38 |
| 17 | Fatih KaragumrukKaragumruk | 36 | 9 | 10 | 17 | 45 | 48 | -3 | 37 |
| 18 | Hatayspor | 36 | 8 | 13 | 15 | 41 | 50 | -9 | 37 |
| 19 | Pendikspor | 36 | 9 | 9 | 18 | 42 | 72 | -30 | 36 |
| R | Istanbulspor | 36 | 4 | 7 | 25 | 26 | 71 | -45 | 16 |
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