The 26-year-old striker joined the club from Macclesfield Town in 2011 and has scored 13 goals in 25 starts for the Posh.
However, according to Sky Sports News, the Championship outfit have made Sinclair available.
A host of League One clubs are understood to be in the race for him.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Wycombe WanderersWycombe | 15 | 11 | 2 | 2 | 35 | 18 | 17 | 35 |
| 2 | Wrexham | 16 | 9 | 4 | 3 | 25 | 11 | 14 | 31 |
| 3 | Stockport CountyStockport | 17 | 8 | 6 | 3 | 29 | 17 | 12 | 30 |
| 4 | Birmingham CityBirmingham | 14 | 9 | 3 | 2 | 26 | 15 | 11 | 30 |
| 5 | Huddersfield TownHuddersfield | 15 | 8 | 2 | 5 | 23 | 15 | 8 | 26 |
| 6 | Barnsley | 16 | 7 | 5 | 4 | 24 | 20 | 4 | 26 |
| 7 | Lincoln CityLincoln | 16 | 7 | 5 | 4 | 23 | 20 | 3 | 26 |
| 8 | Reading | 15 | 8 | 2 | 5 | 24 | 22 | 2 | 26 |
| 9 | Bolton WanderersBolton | 15 | 8 | 2 | 5 | 24 | 25 | -1 | 26 |
| 10 | Mansfield TownMansfield | 14 | 7 | 3 | 4 | 20 | 16 | 4 | 24 |
| 11 | Exeter CityExeter | 15 | 7 | 2 | 6 | 14 | 13 | 1 | 23 |
| 12 | Peterborough UnitedPeterborough | 16 | 6 | 3 | 7 | 32 | 29 | 3 | 21 |
| 13 | Bristol Rovers | 16 | 6 | 3 | 7 | 17 | 21 | -4 | 21 |
| 14 | Charlton AthleticCharlton | 15 | 5 | 4 | 6 | 16 | 17 | -1 | 19 |
| 15 | Stevenage | 16 | 5 | 4 | 7 | 11 | 16 | -5 | 19 |
| 16 | Northampton TownNorthampton | 16 | 4 | 6 | 6 | 18 | 21 | -3 | 18 |
| 17 | Wigan AthleticWigan | 15 | 4 | 5 | 6 | 13 | 12 | 1 | 17 |
| 18 | Rotherham UnitedRotherham | 16 | 4 | 5 | 7 | 14 | 19 | -5 | 17 |
| 19 | Blackpool | 16 | 4 | 5 | 7 | 22 | 30 | -8 | 17 |
| 20 | Crawley TownCrawley | 17 | 4 | 4 | 9 | 15 | 27 | -12 | 16 |
| 21 | Leyton Orient | 15 | 4 | 3 | 8 | 14 | 18 | -4 | 15 |
| 22 | Cambridge UnitedCambridge | 15 | 3 | 3 | 9 | 13 | 24 | -11 | 12 |
| 23 | Shrewsbury TownShrewsbury | 16 | 3 | 2 | 11 | 16 | 29 | -13 | 11 |
| 24 | Burton Albion | 15 | 1 | 5 | 9 | 15 | 28 | -13 | 8 |
| > League One Full Table | |||||||||
