The 19-year-old, who has made two senior appearances for the Gunners, has joined to the Turkish club for £405,000.
"There are many experienced players at this club and I want to learn from them," the midfielder told Besiktas's official website. "It's a significant advantage for me."
Ozyakup entered Arsenal's youth academy in 2008 from Dutch side AZ Alkmaar.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 30 | 22 | 7 | 1 | 70 | 27 | 43 | 73 |
| 2 | Arsenal | 30 | 17 | 10 | 3 | 55 | 25 | 30 | 61 |
| 3 | Nottingham ForestNott'm Forest | 30 | 17 | 6 | 7 | 50 | 35 | 15 | 57 |
| 4 | Chelsea | 30 | 15 | 7 | 8 | 54 | 37 | 17 | 52 |
| 5 | Manchester CityMan City | 30 | 15 | 6 | 9 | 57 | 40 | 17 | 51 |
| 6 | Newcastle UnitedNewcastle | 29 | 15 | 5 | 9 | 49 | 39 | 10 | 50 |
| 7 | Aston Villa | 30 | 13 | 9 | 8 | 44 | 45 | -1 | 48 |
| 8 | Brighton & Hove AlbionBrighton | 30 | 12 | 11 | 7 | 48 | 45 | 3 | 47 |
| 9 | Fulham | 30 | 12 | 9 | 9 | 44 | 40 | 4 | 45 |
| 10 | Bournemouth | 30 | 12 | 8 | 10 | 49 | 38 | 11 | 44 |
| 11 | Brentford | 30 | 12 | 5 | 13 | 51 | 47 | 4 | 41 |
| 12 | Crystal Palace | 29 | 10 | 10 | 9 | 37 | 34 | 3 | 40 |
| 13 | Manchester UnitedMan Utd | 30 | 10 | 7 | 13 | 37 | 41 | -4 | 37 |
| 14 | Tottenham HotspurSpurs | 30 | 10 | 4 | 16 | 55 | 44 | 11 | 34 |
| 15 | Everton | 30 | 7 | 13 | 10 | 32 | 37 | -5 | 34 |
| 16 | West Ham UnitedWest Ham | 30 | 9 | 7 | 14 | 33 | 50 | -17 | 34 |
| 17 | Wolverhampton WanderersWolves | 30 | 8 | 5 | 17 | 41 | 58 | -17 | 29 |
| 18 | Ipswich TownIpswich | 30 | 4 | 8 | 18 | 30 | 63 | -33 | 20 |
| 19 | Leicester CityLeicester | 30 | 4 | 5 | 21 | 25 | 67 | -42 | 17 |
| 20 | Southampton | 30 | 2 | 4 | 24 | 22 | 71 | -49 | 10 |
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