The 32-year-old was on a season-long loan at Vicarage Road from Guangzhou Evergrande, but struggled to make an impact under Quique Flores.
The former West Ham midfielder made only three substitute appearances during his time with the Hornets.
Atalanta said that Diamanti would wear the No.23 shirt at the Stadio Atleti Azzurri d'Italia.
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Norwich CityNorwich | 23 | 14 | 5 | 4 | 31 | 20 | 11 | 47 |
| 2 | Swansea CitySwansea | 23 | 12 | 7 | 4 | 27 | 13 | 14 | 43 |
| 3 | Bournemouth | 23 | 11 | 9 | 3 | 38 | 19 | 19 | 42 |
| 4 | Brentford | 22 | 11 | 8 | 3 | 36 | 21 | 15 | 41 |
| 5 | Reading | 23 | 12 | 4 | 7 | 34 | 28 | 6 | 40 |
| 6 | Middlesbrough | 21 | 10 | 6 | 5 | 28 | 17 | 11 | 36 |
| 7 | Stoke CityStoke | 23 | 9 | 8 | 6 | 26 | 22 | 4 | 35 |
| 8 | Watford | 21 | 9 | 7 | 5 | 24 | 17 | 7 | 34 |
| 9 | Barnsley | 23 | 10 | 4 | 9 | 27 | 29 | -2 | 34 |
| 10 | Bristol City | 22 | 10 | 3 | 9 | 23 | 24 | -1 | 33 |
| 11 | Blackburn RoversBlackburn | 23 | 9 | 5 | 9 | 38 | 27 | 11 | 32 |
| 12 | Preston North EndPreston | 23 | 10 | 2 | 11 | 30 | 31 | -1 | 32 |
| 13 | Huddersfield TownHuddersfield | 23 | 9 | 4 | 10 | 28 | 32 | -4 | 31 |
| 14 | Luton TownLuton | 23 | 8 | 6 | 9 | 20 | 26 | -6 | 30 |
| 15 | Cardiff CityCardiff | 22 | 8 | 5 | 9 | 29 | 25 | 4 | 29 |
| 16 | Millwall | 22 | 5 | 11 | 6 | 19 | 21 | -2 | 26 |
| 17 | Coventry CityCoventry | 23 | 6 | 8 | 9 | 22 | 31 | -9 | 26 |
| 18 | Queens Park RangersQPR | 23 | 5 | 9 | 9 | 22 | 30 | -8 | 24 |
| 19 | Birmingham CityBirmingham | 23 | 5 | 8 | 10 | 17 | 29 | -12 | 23 |
| 20 | Nottingham ForestNott'm Forest | 23 | 5 | 7 | 11 | 16 | 26 | -10 | 22 |
| 21 | Sheffield WednesdaySheff Weds | 23 | 6 | 7 | 10 | 15 | 23 | -8 | 19 |
| 22 | Derby CountyDerby | 22 | 4 | 7 | 11 | 14 | 24 | -10 | 19 |
| 23 | Rotherham UnitedRotherham | 20 | 4 | 4 | 12 | 19 | 29 | -10 | 16 |
| 24 | Wycombe WanderersWycombe | 23 | 3 | 6 | 14 | 16 | 35 | -19 | 15 |
| > Full Version | |||||||||
