The Swiss Under-21 international, 21, has also attracted interest from Lazio and Kaiserslautern.
The Hammers have sent scouts to watch the midfielder in the hope of putting in a bid, according to The Mirror.
Hajrovic signed his first professional deal with Grasshoppers in 2009 following a nine-year spell in the club's youth academy.
body check tags ::
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 23 | 22 | 1 | 0 | 54 | 15 | 39 | 67 |
| 2 | Manchester CityMan City | 24 | 16 | 3 | 5 | 65 | 27 | 38 | 51 |
| 3 | Leicester CityLeicester | 24 | 15 | 3 | 6 | 52 | 24 | 28 | 48 |
| 4 | Chelsea | 24 | 12 | 4 | 8 | 41 | 32 | 9 | 40 |
| 5 | Manchester UnitedMan Utd | 24 | 9 | 7 | 8 | 36 | 29 | 7 | 34 |
| 6 | Tottenham HotspurSpurs | 24 | 9 | 7 | 8 | 38 | 32 | 6 | 34 |
| 7 | Wolverhampton WanderersWolves | 24 | 8 | 10 | 6 | 35 | 32 | 3 | 34 |
| 8 | Sheffield UnitedSheff Utd | 24 | 8 | 9 | 7 | 25 | 23 | 2 | 33 |
| 9 | Southampton | 24 | 9 | 4 | 11 | 31 | 42 | -11 | 31 |
| 10 | Arsenal | 24 | 6 | 12 | 6 | 32 | 34 | -2 | 30 |
| 11 | Crystal Palace | 24 | 7 | 9 | 8 | 22 | 28 | -6 | 30 |
| 12 | Everton | 24 | 8 | 6 | 10 | 28 | 35 | -7 | 30 |
| 13 | Burnley | 24 | 9 | 3 | 12 | 28 | 38 | -10 | 30 |
| 14 | Newcastle UnitedNewcastle | 24 | 8 | 6 | 10 | 24 | 36 | -12 | 30 |
| 15 | Brighton & Hove AlbionBrighton | 24 | 6 | 7 | 11 | 27 | 34 | -7 | 25 |
| 16 | Aston Villa | 24 | 7 | 4 | 13 | 31 | 45 | -14 | 25 |
| 17 | West Ham UnitedWest Ham | 23 | 6 | 5 | 12 | 27 | 38 | -11 | 23 |
| 18 | Bournemouth | 24 | 6 | 5 | 13 | 23 | 37 | -14 | 23 |
| 19 | Watford | 24 | 5 | 8 | 11 | 21 | 36 | -15 | 23 |
| 20 | Norwich CityNorwich | 24 | 4 | 5 | 15 | 24 | 47 | -23 | 17 |
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