The young defender is currently struggling with an ankle complaint that he suffered against Southampton at the weekend.
The Royals will also be without Russian frontman Pavel Pogrebnyak, who has picked up a muscular problem.
Alex McCarthy, Jimmy Kebe and Jem Karacan will also not make the trip to take on the Black Cats.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Birmingham CityBirmingham | 29 | 21 | 6 | 2 | 51 | 19 | 32 | 69 |
| 2 | Wycombe WanderersWycombe | 30 | 17 | 9 | 4 | 56 | 31 | 25 | 60 |
| 3 | Wrexham | 30 | 17 | 7 | 6 | 45 | 25 | 20 | 58 |
| 4 | Stockport CountyStockport | 32 | 16 | 9 | 7 | 49 | 30 | 19 | 57 |
| 5 | Huddersfield TownHuddersfield | 30 | 15 | 7 | 8 | 43 | 27 | 16 | 52 |
| 6 | Leyton Orient | 30 | 15 | 5 | 10 | 46 | 27 | 19 | 50 |
| 7 | Charlton AthleticCharlton | 31 | 14 | 8 | 9 | 40 | 30 | 10 | 50 |
| 8 | Bolton WanderersBolton | 31 | 15 | 5 | 11 | 50 | 48 | 2 | 50 |
| 9 | Reading | 31 | 14 | 7 | 10 | 46 | 43 | 3 | 49 |
| 10 | Barnsley | 31 | 12 | 7 | 12 | 43 | 43 | 0 | 43 |
| 11 | Blackpool | 31 | 9 | 14 | 8 | 45 | 44 | 1 | 41 |
| 12 | Stevenage | 30 | 11 | 8 | 11 | 29 | 31 | -2 | 41 |
| 13 | Lincoln CityLincoln | 31 | 10 | 10 | 11 | 38 | 38 | 0 | 40 |
| 14 | Rotherham UnitedRotherham | 31 | 10 | 8 | 13 | 35 | 37 | -2 | 38 |
| 15 | Mansfield TownMansfield | 30 | 11 | 5 | 14 | 38 | 41 | -3 | 38 |
| 16 | Exeter CityExeter | 30 | 10 | 5 | 15 | 34 | 46 | -12 | 35 |
| 17 | Bristol Rovers | 30 | 10 | 5 | 15 | 32 | 46 | -14 | 35 |
| 18 | Wigan AthleticWigan | 29 | 9 | 7 | 13 | 27 | 30 | -3 | 34 |
| 19 | Northampton TownNorthampton | 31 | 8 | 9 | 14 | 29 | 47 | -18 | 33 |
| 20 | Peterborough UnitedPeterborough | 31 | 8 | 7 | 16 | 47 | 58 | -11 | 31 |
| 21 | Crawley TownCrawley | 30 | 7 | 7 | 16 | 34 | 54 | -20 | 28 |
| 22 | Shrewsbury TownShrewsbury | 31 | 7 | 6 | 18 | 33 | 53 | -20 | 27 |
| 23 | Burton Albion | 31 | 5 | 11 | 15 | 32 | 48 | -16 | 26 |
| 24 | Cambridge UnitedCambridge | 31 | 5 | 8 | 18 | 30 | 56 | -26 | 23 |
| > League One Full Table | |||||||||
