The 35-year-old, who has also played for Chelsea and Bayern Munich, is currently a free agent after leaving Leverkusen in the summer.
According to Sky Sports news, no official contract talks have taken place, but a meeting between the two parties is expected this week.
Ballack scored 42 goals in 98 caps for Germany.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Bayern MunichBayern | 9 | 7 | 2 | 0 | 32 | 7 | 25 | 23 |
| 2 | RB Leipzig | 9 | 6 | 2 | 1 | 15 | 5 | 10 | 20 |
| 3 | Eintracht FrankfurtFrankfurt | 9 | 5 | 2 | 2 | 23 | 14 | 9 | 17 |
| 4 | Bayer LeverkusenB. Leverkusen | 9 | 4 | 4 | 1 | 20 | 15 | 5 | 16 |
| 5 | Borussia DortmundDortmund | 9 | 5 | 1 | 3 | 17 | 15 | 2 | 16 |
| 6 | Freiburg | 9 | 5 | 1 | 3 | 13 | 11 | 2 | 16 |
| 7 | Union BerlinUnion Berlin | 9 | 4 | 3 | 2 | 9 | 8 | 1 | 15 |
| 8 | Stuttgart | 9 | 3 | 4 | 2 | 17 | 16 | 1 | 13 |
| 9 | Borussia MonchengladbachBorussia M'bach | 9 | 4 | 1 | 4 | 15 | 14 | 1 | 13 |
| 10 | Werder Bremen | 9 | 3 | 3 | 3 | 15 | 20 | -5 | 12 |
| 11 | Augsburg | 9 | 3 | 2 | 4 | 13 | 20 | -7 | 11 |
| 12 | Heidenheim | 9 | 3 | 1 | 5 | 12 | 12 | 0 | 10 |
| 13 | Mainz 05Mainz | 9 | 2 | 4 | 3 | 12 | 13 | -1 | 10 |
| 14 | Wolfsburg | 9 | 2 | 3 | 4 | 16 | 17 | -1 | 9 |
| 15 | St Pauli | 9 | 2 | 2 | 5 | 7 | 11 | -4 | 8 |
| 16 | Hoffenheim | 9 | 2 | 2 | 5 | 13 | 19 | -6 | 8 |
| 17 | Holstein Kiel | 9 | 1 | 2 | 6 | 11 | 23 | -12 | 5 |
| 18 | VfL BochumVfL Bochum | 9 | 0 | 1 | 8 | 9 | 29 | -20 | 1 |
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