The 23-year-old spent last season on loan at Hellas Verona, but the club decided against making the deal permanent.
However, FC Koln have had a bid of £1.8m accepted and could confirm the deal this weekend, reports Koln-based newspaper Express.
Sorensen, who has 15 caps for Denmark Under-21s, joined Juventus from Lyngby BK in 2010.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| C | Bayer LeverkusenB. Leverkusen | 30 | 25 | 5 | 0 | 75 | 20 | 55 | 80 |
| 2 | Bayern MunichBayern | 30 | 21 | 3 | 6 | 87 | 37 | 50 | 66 |
| 3 | Stuttgart | 30 | 20 | 3 | 7 | 68 | 36 | 32 | 63 |
| 4 | RB Leipzig | 30 | 18 | 5 | 7 | 69 | 34 | 35 | 59 |
| 5 | Borussia DortmundDortmund | 30 | 16 | 9 | 5 | 58 | 35 | 23 | 57 |
| 6 | Eintracht FrankfurtFrankfurt | 30 | 11 | 12 | 7 | 46 | 40 | 6 | 45 |
| 7 | Freiburg | 30 | 11 | 7 | 12 | 42 | 53 | -11 | 40 |
| 8 | Augsburg | 30 | 10 | 9 | 11 | 48 | 49 | -1 | 39 |
| 9 | Hoffenheim | 30 | 11 | 6 | 13 | 53 | 60 | -7 | 39 |
| 10 | Heidenheim | 30 | 8 | 10 | 12 | 43 | 52 | -9 | 34 |
| 11 | Werder Bremen | 30 | 9 | 7 | 14 | 38 | 50 | -12 | 34 |
| 12 | Borussia MonchengladbachBorussia M'bach | 30 | 7 | 10 | 13 | 53 | 60 | -7 | 31 |
| 13 | Wolfsburg | 30 | 8 | 7 | 15 | 35 | 50 | -15 | 31 |
| 14 | Union BerlinUnion Berlin | 30 | 8 | 5 | 17 | 26 | 50 | -24 | 29 |
| 15 | Mainz 05Mainz | 30 | 5 | 12 | 13 | 31 | 48 | -17 | 27 |
| 16 | VfL BochumVfL Bochum | 30 | 5 | 12 | 13 | 34 | 60 | -26 | 27 |
| 17 | FC Koln | 30 | 4 | 10 | 16 | 23 | 53 | -30 | 22 |
| 18 | SV Darmstadt 98Darmstadt | 30 | 3 | 8 | 19 | 30 | 72 | -42 | 17 |
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