The 31-year-old revealed that he had suffered the injury during the Gunners' Carling Cup win against Shrewsbury on Tuesday night.
"Very disappointed as I have a strain and will be out for a week or so," the Israeli wrote on his Twitter page.
Benayoun is likely to miss Saturday's visit of Bolton Wanderers as well as Wednesday's Champions League group match against Olympiakos.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 12 | 10 | 1 | 1 | 24 | 8 | 16 | 31 |
| 2 | Arsenal | 13 | 7 | 4 | 2 | 26 | 14 | 12 | 25 |
| 3 | Manchester CityMan City | 12 | 7 | 2 | 3 | 22 | 17 | 5 | 23 |
| 4 | Brighton & Hove AlbionBrighton | 13 | 6 | 5 | 2 | 22 | 17 | 5 | 23 |
| 5 | Chelsea | 12 | 6 | 4 | 2 | 23 | 14 | 9 | 22 |
| 6 | Nottingham ForestNott'm Forest | 13 | 6 | 4 | 3 | 16 | 13 | 3 | 22 |
| 7 | Brentford | 13 | 6 | 2 | 5 | 26 | 23 | 3 | 20 |
| 8 | Tottenham HotspurSpurs | 12 | 6 | 1 | 5 | 27 | 13 | 14 | 19 |
| 9 | Aston Villa | 12 | 5 | 4 | 3 | 19 | 19 | 0 | 19 |
| 10 | Newcastle UnitedNewcastle | 13 | 5 | 4 | 4 | 14 | 14 | 0 | 19 |
| 11 | Bournemouth | 13 | 5 | 3 | 5 | 20 | 19 | 1 | 18 |
| 12 | Fulham | 12 | 5 | 3 | 4 | 17 | 17 | 0 | 18 |
| 13 | Manchester UnitedMan Utd | 12 | 4 | 4 | 4 | 13 | 13 | 0 | 16 |
| 14 | West Ham UnitedWest Ham | 13 | 4 | 3 | 6 | 17 | 24 | -7 | 15 |
| 15 | Everton | 12 | 2 | 5 | 5 | 10 | 17 | -7 | 11 |
| 16 | Leicester CityLeicester | 13 | 2 | 4 | 7 | 16 | 27 | -11 | 10 |
| 17 | Crystal Palace | 13 | 1 | 6 | 6 | 11 | 18 | -7 | 9 |
| 18 | Wolverhampton WanderersWolves | 13 | 2 | 3 | 8 | 22 | 32 | -10 | 9 |
| 19 | Ipswich TownIpswich | 13 | 1 | 6 | 6 | 13 | 24 | -11 | 9 |
| 20 | Southampton | 13 | 1 | 2 | 10 | 10 | 25 | -15 | 5 |
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