Sneijder, who originally joined from Inter in 2013, has agreed to extend his stay in Turkey until the end of the 2017-18 season.
The club has also announced that a signing ceremony with Sneijder will take place on Sunday at the Turk Telekom Arena Stadium.
The Netherlands international has previously been a target for both Manchester United and Paris Saint-Germain.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | GalatasarayGalatasaray | 34 | 30 | 3 | 1 | 80 | 21 | 59 | 93 |
| 2 | Fenerbahce | 34 | 28 | 5 | 1 | 89 | 31 | 58 | 89 |
| 3 | TrabzonsporTrabzonspor | 34 | 18 | 4 | 12 | 60 | 45 | 15 | 58 |
| 4 | Istanbul BasaksehirIstanbul | 34 | 15 | 7 | 12 | 46 | 39 | 7 | 52 |
| 5 | BesiktasBesiktas | 34 | 15 | 6 | 13 | 45 | 40 | 5 | 51 |
| 6 | KasimpasaKasimpasa | 34 | 14 | 7 | 13 | 56 | 59 | -3 | 49 |
| 7 | Caykur RizesporCaykur Rizespor | 34 | 14 | 7 | 13 | 45 | 51 | -6 | 49 |
| 8 | AlanyasporAlanyaspor | 34 | 12 | 12 | 10 | 49 | 46 | 3 | 48 |
| 9 | SivassporSivasspor | 34 | 12 | 12 | 10 | 41 | 45 | -4 | 48 |
| 10 | AntalyasporAntalyaspor | 33 | 11 | 12 | 10 | 38 | 38 | 0 | 45 |
| 11 | Adana Demirspor | 34 | 9 | 14 | 11 | 49 | 47 | 2 | 41 |
| 12 | KayserisporKayserispor | 34 | 11 | 10 | 13 | 39 | 48 | -9 | 40 |
| 13 | Samsunspor | 34 | 10 | 9 | 15 | 37 | 44 | -7 | 39 |
| 14 | AnkaragucuAnkaragucu | 34 | 8 | 14 | 12 | 42 | 45 | -3 | 38 |
| 15 | KonyasporKonyaspor | 34 | 8 | 12 | 14 | 34 | 48 | -14 | 36 |
| 16 | GaziantepGaziantep | 34 | 9 | 7 | 18 | 39 | 54 | -15 | 34 |
| 17 | Fatih KaragumrukKaragumruk | 33 | 8 | 9 | 16 | 37 | 42 | -5 | 33 |
| 18 | Hatayspor | 34 | 7 | 12 | 15 | 38 | 48 | -10 | 33 |
| 19 | Pendikspor | 34 | 7 | 9 | 18 | 38 | 70 | -32 | 30 |
| R | Istanbulspor | 34 | 4 | 7 | 23 | 26 | 67 | -41 | 16 |
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