The agreement includes an option for the Turkish side to buy the 26-year-old at the end of the deal.
Marin spent last season on loan at Fiorentina and Anderlecht respectively.
The former Germany international arrived at Stamford Bridge from Werder Bremen in 2012.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 22 | 16 | 5 | 1 | 54 | 21 | 33 | 53 |
| 2 | Arsenal | 23 | 13 | 8 | 2 | 44 | 21 | 23 | 47 |
| 3 | Nottingham ForestNott'm Forest | 23 | 13 | 5 | 5 | 33 | 27 | 6 | 44 |
| 4 | Manchester CityMan City | 23 | 12 | 5 | 6 | 47 | 30 | 17 | 41 |
| 5 | Newcastle UnitedNewcastle | 23 | 12 | 5 | 6 | 41 | 27 | 14 | 41 |
| 6 | Chelsea | 23 | 11 | 7 | 5 | 45 | 30 | 15 | 40 |
| 7 | Bournemouth | 23 | 11 | 7 | 5 | 41 | 26 | 15 | 40 |
| 8 | Aston Villa | 23 | 10 | 7 | 6 | 34 | 35 | -1 | 37 |
| 9 | Brighton & Hove AlbionBrighton | 23 | 8 | 10 | 5 | 35 | 31 | 4 | 34 |
| 10 | Fulham | 23 | 8 | 9 | 6 | 34 | 31 | 3 | 33 |
| 11 | Brentford | 23 | 9 | 4 | 10 | 42 | 40 | 2 | 31 |
| 12 | Manchester UnitedMan Utd | 23 | 8 | 5 | 10 | 28 | 32 | -4 | 29 |
| 13 | Crystal Palace | 23 | 6 | 9 | 8 | 26 | 30 | -4 | 27 |
| 14 | West Ham UnitedWest Ham | 23 | 7 | 6 | 10 | 28 | 44 | -16 | 27 |
| 15 | Tottenham HotspurSpurs | 23 | 7 | 3 | 13 | 46 | 37 | 9 | 24 |
| 16 | Everton | 22 | 5 | 8 | 9 | 19 | 28 | -9 | 23 |
| 17 | Leicester CityLeicester | 23 | 4 | 5 | 14 | 25 | 49 | -24 | 17 |
| 18 | Wolverhampton WanderersWolves | 23 | 4 | 4 | 15 | 32 | 52 | -20 | 16 |
| 19 | Ipswich TownIpswich | 23 | 3 | 7 | 13 | 21 | 47 | -26 | 16 |
| 20 | Southampton | 23 | 1 | 3 | 19 | 16 | 53 | -37 | 6 |
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