The 20-year-old joined the Glovers in August and he has since gone on to make 22 appearances in all competitions.
His stay at Huish Park officially expired at the weekend, but he has now agreed to remain with the League Two club until December 16.
Roberts is yet to make a senior appearance for his parent club.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Leeds UnitedLeeds | 26 | 15 | 8 | 3 | 48 | 19 | 29 | 53 |
| 2 | Burnley | 26 | 14 | 10 | 2 | 31 | 9 | 22 | 52 |
| 3 | Sheffield UnitedSheff Utd | 26 | 16 | 6 | 4 | 36 | 17 | 19 | 52 |
| 4 | Sunderland | 26 | 14 | 8 | 4 | 39 | 22 | 17 | 50 |
| 5 | Blackburn RoversBlackburn | 26 | 12 | 6 | 8 | 31 | 23 | 8 | 42 |
| 6 | Middlesbrough | 26 | 11 | 8 | 7 | 43 | 32 | 11 | 41 |
| 7 | West Bromwich AlbionWest Brom | 26 | 9 | 13 | 4 | 32 | 21 | 11 | 40 |
| 8 | Watford | 26 | 11 | 5 | 10 | 36 | 37 | -1 | 38 |
| 9 | Bristol City | 26 | 9 | 10 | 7 | 33 | 30 | 3 | 37 |
| 10 | Sheffield WednesdaySheff Weds | 26 | 10 | 7 | 9 | 38 | 40 | -2 | 37 |
| 11 | Norwich CityNorwich | 26 | 9 | 9 | 8 | 43 | 37 | 6 | 36 |
| 12 | Swansea CitySwansea | 26 | 9 | 7 | 10 | 30 | 30 | 0 | 34 |
| 13 | Queens Park RangersQPR | 26 | 7 | 11 | 8 | 29 | 34 | -5 | 32 |
| 14 | Millwall | 25 | 7 | 9 | 9 | 24 | 23 | 1 | 30 |
| 15 | Preston North EndPreston | 26 | 6 | 12 | 8 | 28 | 34 | -6 | 30 |
| 16 | Coventry CityCoventry | 26 | 7 | 8 | 11 | 34 | 37 | -3 | 29 |
| 17 | Oxford UnitedOxford Utd | 26 | 7 | 8 | 11 | 29 | 41 | -12 | 29 |
| 18 | Derby CountyDerby | 26 | 7 | 6 | 13 | 31 | 35 | -4 | 27 |
| 19 | Stoke CityStoke | 26 | 6 | 9 | 11 | 24 | 32 | -8 | 27 |
| 20 | Luton TownLuton | 26 | 7 | 4 | 15 | 27 | 44 | -17 | 25 |
| 21 | Cardiff CityCardiff | 26 | 5 | 9 | 12 | 26 | 41 | -15 | 24 |
| 22 | Hull City | 26 | 5 | 8 | 13 | 25 | 36 | -11 | 23 |
| 23 | Portsmouth | 25 | 5 | 8 | 12 | 30 | 44 | -14 | 23 |
| 24 | Plymouth ArgylePlymouth | 26 | 4 | 9 | 13 | 25 | 54 | -29 | 21 |
| > Championship Full Table | |||||||||
