The 24-year-old has scored 22 goals in 67 games for the Dutch club since joining in 2010, but it is understood that he is keen to try his hand in the Premier League.
The Saints' first bid of around £5m was rejected, according to The Sun, but they will reportedly up their offer to £6.5m.
Southampton secured automatic promotion from the Championship last season.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | PSV EindhovenPSV | 12 | 11 | 0 | 1 | 40 | 9 | 31 | 33 |
| 2 | FC UtrechtUtrecht | 11 | 9 | 1 | 1 | 20 | 11 | 9 | 28 |
| 3 | Ajax | 11 | 8 | 2 | 1 | 25 | 11 | 14 | 26 |
| 4 | Feyenoord | 12 | 7 | 4 | 1 | 28 | 13 | 15 | 25 |
| 5 | FC Twente | 12 | 6 | 4 | 2 | 24 | 11 | 13 | 22 |
| 6 | AZ AlkmaarAZ | 12 | 5 | 2 | 5 | 23 | 14 | 9 | 17 |
| 7 | Fortuna SittardSittard | 12 | 5 | 2 | 5 | 13 | 16 | -3 | 17 |
| 8 | NECNijmegen | 12 | 5 | 1 | 6 | 19 | 10 | 9 | 16 |
| 9 | Willem II | 12 | 4 | 3 | 5 | 13 | 12 | 1 | 15 |
| 10 | Go Ahead Eagles | 12 | 4 | 3 | 5 | 15 | 20 | -5 | 15 |
| 11 | NAC BredaNAC Breda | 12 | 5 | 0 | 7 | 12 | 21 | -9 | 15 |
| 12 | Heerenveen | 12 | 4 | 2 | 6 | 13 | 23 | -10 | 14 |
| 13 | Groningen | 12 | 3 | 3 | 6 | 12 | 19 | -7 | 12 |
| 14 | PEC Zwolle | 12 | 3 | 3 | 6 | 14 | 22 | -8 | 12 |
| 15 | Heracles | 12 | 3 | 3 | 6 | 12 | 23 | -11 | 12 |
| 16 | Sparta RotterdamSparta | 12 | 2 | 5 | 5 | 12 | 18 | -6 | 11 |
| 17 | Almere CityAlmere City | 12 | 1 | 3 | 8 | 6 | 27 | -21 | 6 |
| 18 | RKC WaalwijkRKC Waalwijk | 12 | 1 | 1 | 10 | 10 | 31 | -21 | 4 |
| > Eredivisie Full Table | |||||||||
