He picked up the injury during QPR's 2-0 win at Sunderland on Tuesday night, their first away win of the season.
Fer had scored the opening goal at the Stadium of Light, but was stretchered off in the 75th minute.
QPR described the injury as a "medial collateral ligament injury to his left knee" on Twitter.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Sunderland | 9 | 6 | 1 | 2 | 18 | 8 | 10 | 19 |
| 2 | Sheffield UnitedSheff Utd | 9 | 6 | 3 | 0 | 12 | 3 | 9 | 19 |
| 3 | Burnley | 9 | 5 | 3 | 1 | 14 | 4 | 10 | 18 |
| 4 | West Bromwich AlbionWest Brom | 9 | 5 | 2 | 2 | 12 | 6 | 6 | 17 |
| 5 | Leeds UnitedLeeds | 9 | 4 | 4 | 1 | 15 | 7 | 8 | 16 |
| 6 | Watford | 9 | 5 | 1 | 3 | 14 | 14 | 0 | 16 |
| 7 | Norwich CityNorwich | 9 | 4 | 3 | 2 | 16 | 10 | 6 | 15 |
| 8 | Blackburn RoversBlackburn | 9 | 4 | 3 | 2 | 15 | 11 | 4 | 15 |
| 9 | Middlesbrough | 9 | 4 | 2 | 3 | 10 | 7 | 3 | 14 |
| 10 | Oxford UnitedOxford Utd | 9 | 3 | 3 | 3 | 13 | 11 | 2 | 12 |
| 11 | Swansea CitySwansea | 9 | 3 | 3 | 3 | 8 | 6 | 2 | 12 |
| 12 | Derby CountyDerby | 9 | 4 | 0 | 5 | 12 | 12 | 0 | 12 |
| 13 | Hull City | 9 | 3 | 3 | 3 | 12 | 13 | -1 | 12 |
| 14 | Plymouth ArgylePlymouth | 9 | 3 | 2 | 4 | 10 | 13 | -3 | 11 |
| 15 | Sheffield WednesdaySheff Weds | 9 | 3 | 2 | 4 | 11 | 15 | -4 | 11 |
| 16 | Stoke CityStoke | 9 | 3 | 1 | 5 | 10 | 12 | -2 | 10 |
| 17 | Bristol City | 8 | 2 | 4 | 2 | 9 | 13 | -4 | 10 |
| 18 | Millwall | 9 | 2 | 3 | 4 | 12 | 11 | 1 | 9 |
| 19 | Preston North EndPreston | 9 | 2 | 3 | 4 | 7 | 12 | -5 | 9 |
| 20 | Coventry CityCoventry | 9 | 2 | 2 | 5 | 10 | 13 | -3 | 8 |
| 21 | Luton TownLuton | 9 | 2 | 2 | 5 | 8 | 15 | -7 | 8 |
| 22 | Queens Park RangersQPR | 9 | 1 | 4 | 4 | 9 | 16 | -7 | 7 |
| 23 | Portsmouth | 9 | 0 | 5 | 4 | 9 | 20 | -11 | 5 |
| 24 | Cardiff CityCardiff | 8 | 1 | 1 | 6 | 3 | 17 | -14 | 4 |
| > Championship Full Table | |||||||||
