The 20-year-old midfielder played under Ronald Koeman at Feyenoord, and he has been pushing for a transfer away since the Dutchman's move to St Mary’s Stadium.
Unhappy in his current career path, Koeman was quoted by Voetbal International last week as confirming interest in the Netherlands youth international, suggesting that Vilhena is keen on joining up with him again, having enjoyed the most productive part of his career under the former Barcelona defender.
Although Vilhena is looking for a move away from De Kuip, Feyenoord know that the youngster is one of the most highly rated prospects in European football, and keeping hold of him would allow them to cash in on his development later in his career. However, this situation relies upon Vilhena signing a new contract with the club - something that looks unlikely at this moment in time - and they could potentially lose him for less money in the summer.
Knowing that a deal would be cheaper in the off season looks to have played heavily on the Saints' working of the transfer, but, having just sold Jack Cork to Swansea City, Koeman could be looking to strengthen before the close of the transfer deadline this evening.
However, Feyenoord are asking for no less than €7 million for the midfielder, according to SoccerNews.nl, and that fee could put Southampton off, knowing that his contract runs out in the summer of 2016 making a transfer away inevitable. They could splash out on Vilhena today if looking for a quick fix for their midfield troubles, but a transfer a few months down the line is looking more likely.