The Swiss international, who spent the second part of last season on loan at Hannover, was expected to leave the Gunners on a permanent transfer this summer.
However, the centre-back, who did not make a single league appearance for Arsenal last season, has joined the Bundesliga club on loan.
It has been reported that Hamburg will have the option to purchase the 26-year-old at the end of next season.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Brighton & Hove AlbionBrighton | 1 | 1 | 0 | 0 | 3 | 0 | 3 | 3 |
| 2 | Liverpool | 1 | 1 | 0 | 0 | 2 | 0 | 2 | 3 |
| 3 | Manchester CityMan City | 1 | 1 | 0 | 0 | 2 | 0 | 2 | 3 |
| 4 | Arsenal | 1 | 1 | 0 | 0 | 2 | 0 | 2 | 3 |
| 5 | Brentford | 1 | 1 | 0 | 0 | 2 | 1 | 1 | 3 |
| 6 | Aston Villa | 1 | 1 | 0 | 0 | 2 | 1 | 1 | 3 |
| 7 | Newcastle UnitedNewcastle | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 3 |
| 8 | Manchester UnitedMan Utd | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 3 |
| 9 | Tottenham HotspurSpurs | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 |
| 10 | Leicester CityLeicester | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 |
| 11 | Bournemouth | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 |
| 12 | Nottingham ForestNott'm Forest | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 |
| 13 | West Ham UnitedWest Ham | 1 | 0 | 0 | 1 | 1 | 2 | -1 | 0 |
| 14 | Crystal Palace | 1 | 0 | 0 | 1 | 1 | 2 | -1 | 0 |
| 15 | Fulham | 1 | 0 | 0 | 1 | 0 | 1 | -1 | 0 |
| 16 | Southampton | 1 | 0 | 0 | 1 | 0 | 1 | -1 | 0 |
| 17 | Wolverhampton WanderersWolves | 1 | 0 | 0 | 1 | 0 | 2 | -2 | 0 |
| 18 | Ipswich TownIpswich | 1 | 0 | 0 | 1 | 0 | 2 | -2 | 0 |
| 19 | Chelsea | 1 | 0 | 0 | 1 | 0 | 2 | -2 | 0 |
| 20 | Everton | 1 | 0 | 0 | 1 | 0 | 3 | -3 | 0 |
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