The 24-year-old has made just a singular appearance for the Swans since joining from Aldershot Town two seasons ago, and he has recently spent a loan spell at Wycombe Wanderers.
According to Sky Sports News, Donnelly wants to move on following a discussion with new boss Michael Laudrup.
A number of Championship clubs have reportedly registered an interest.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | York City | 19 | 12 | 5 | 2 | 37 | 14 | 23 | 41 |
| 2 | Forest Green RoversForest Green | 19 | 12 | 5 | 2 | 37 | 16 | 21 | 41 |
| 3 | Barnet | 19 | 13 | 1 | 5 | 40 | 23 | 17 | 40 |
| 4 | Gateshead | 19 | 11 | 4 | 4 | 35 | 24 | 11 | 37 |
| 5 | Oldham AthleticOldham | 18 | 9 | 7 | 2 | 29 | 17 | 12 | 34 |
| 6 | Rochdale | 18 | 9 | 3 | 6 | 27 | 18 | 9 | 30 |
| 7 | Halifax TownHalifax | 18 | 8 | 5 | 5 | 20 | 16 | 4 | 29 |
| 8 | Solihull MoorsSolihull | 19 | 8 | 4 | 7 | 35 | 32 | 3 | 28 |
| 9 | Yeovil TownYeovil | 19 | 8 | 4 | 7 | 21 | 20 | 1 | 28 |
| 10 | AltrinchamAltrincham | 19 | 7 | 6 | 6 | 29 | 25 | 4 | 27 |
| 11 | Sutton UnitedSutton | 18 | 7 | 4 | 7 | 26 | 26 | 0 | 25 |
| 12 | Eastleigh | 19 | 6 | 7 | 6 | 26 | 26 | 0 | 25 |
| 13 | Hartlepool UnitedHartlepool | 19 | 6 | 7 | 6 | 22 | 24 | -2 | 25 |
| 14 | Tamworth | 19 | 7 | 4 | 8 | 22 | 33 | -11 | 25 |
| 15 | Dagenham & RedbridgeDag & Red | 19 | 5 | 7 | 7 | 31 | 24 | 7 | 22 |
| 16 | Southend UnitedSouthend | 19 | 5 | 7 | 7 | 22 | 24 | -2 | 22 |
| 17 | Aldershot TownAldershot | 19 | 5 | 7 | 7 | 25 | 30 | -5 | 22 |
| 18 | Woking | 19 | 5 | 5 | 9 | 19 | 26 | -7 | 20 |
| 19 | WealdstoneWealdstone | 19 | 4 | 7 | 8 | 19 | 26 | -7 | 19 |
| 20 | Braintree TownBraintree | 19 | 5 | 4 | 10 | 15 | 23 | -8 | 19 |
| 21 | Fylde | 18 | 5 | 3 | 10 | 23 | 37 | -14 | 18 |
| 22 | Maidenhead UnitedMaidenhead | 19 | 4 | 4 | 11 | 21 | 36 | -15 | 16 |
| 23 | Boston UnitedBoston | 19 | 3 | 5 | 11 | 19 | 32 | -13 | 14 |
| 24 | Ebbsfleet | 18 | 1 | 5 | 12 | 15 | 43 | -28 | 8 |
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