The 23-year-old suffered the problem during yesterday's Euro 2016 qualifying win in Estonia.
He had scored twice in seven Bundesliga appearances this season for Monchengladbach, who are 13th in the table.
Xhaka joins Patrick Herrmann and Nico Schulz, who have both torn cruciate knee ligaments, on the Monchengladbach treatment table.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| C | Bayer LeverkusenB. Leverkusen | 29 | 25 | 4 | 0 | 74 | 19 | 55 | 79 |
| 2 | Bayern MunichBayern | 29 | 20 | 3 | 6 | 82 | 36 | 46 | 63 |
| 3 | Stuttgart | 29 | 20 | 3 | 6 | 67 | 34 | 33 | 63 |
| 4 | RB Leipzig | 29 | 17 | 5 | 7 | 67 | 33 | 34 | 56 |
| 5 | Borussia DortmundDortmund | 29 | 16 | 8 | 5 | 57 | 34 | 23 | 56 |
| 6 | Eintracht FrankfurtFrankfurt | 29 | 10 | 12 | 7 | 43 | 39 | 4 | 42 |
| 7 | Augsburg | 29 | 10 | 9 | 10 | 47 | 46 | 1 | 39 |
| 8 | Freiburg | 29 | 11 | 6 | 12 | 41 | 52 | -11 | 39 |
| 9 | Hoffenheim | 29 | 10 | 6 | 13 | 49 | 57 | -8 | 36 |
| 10 | Heidenheim | 29 | 8 | 10 | 11 | 42 | 50 | -8 | 34 |
| 11 | Borussia MonchengladbachBorussia M'bach | 29 | 7 | 10 | 12 | 50 | 56 | -6 | 31 |
| 12 | Werder Bremen | 29 | 8 | 7 | 14 | 36 | 49 | -13 | 31 |
| 13 | Union BerlinUnion Berlin | 29 | 8 | 5 | 16 | 25 | 45 | -20 | 29 |
| 14 | Wolfsburg | 29 | 7 | 7 | 15 | 34 | 50 | -16 | 28 |
| 15 | VfL BochumVfL Bochum | 29 | 5 | 12 | 12 | 34 | 59 | -25 | 27 |
| 16 | Mainz 05Mainz | 29 | 5 | 11 | 13 | 30 | 47 | -17 | 26 |
| 17 | FC Koln | 29 | 4 | 10 | 15 | 23 | 51 | -28 | 22 |
| 18 | SV Darmstadt 98Darmstadt | 29 | 2 | 8 | 19 | 28 | 72 | -44 | 14 |
| > Bundesliga Full Table | |||||||||
