The advisers of Ron Vlaar are attempting to persuade the Dutchman not to make a summer switch to St. Mary's after a summer of upheaval.
The Dutch defender is in demand after an impressive World Cup, in which the Netherlands finished third, defeating hosts Brazil in the third-place play-off.
Aside from Southampton, the Koggenland-born defender has had offers from Serie A side Lazio as well as reported interest from his national team boss Louis van Gaal, now in charge of Manchester United.
Aston Villa have made retaining Vlaar a high priority, with Villains boss Paul Lambert admitting that despite receiving positive vibes, he has only spoken briefly with Vlaar since his return from the World Cup.
"It was a good feeling I got from him," Lambert told the Birmingham Mail.
"To be fair, it was a really brief conversation I had before the game as I was preparing the lads for the match."
Vlaar has just one year remaining on his current deal at Villa Park, with the Midlands club attempting to persuade him to put pen-to-paper on an extension that would see him remain at the club for the next four seasons.
The defender is yet to make a final decision on his future, although those close to Vlaar are said to be wary of a move to Southampton after a summer of upheaval at the south coast club, claim The Star.
No fewer than five key players have departed St. Mary's so far this summer, with Morgan Schneiderlin still wanting to leave and reported interest from Tottenham Hotspur in the currently injured Jay Rodriguez.
Although Koeman would like to re-unite with Vlaar as he builds his own era at Southampton, it is thought that the uncertainty could deter Vlaar from making the move to St. Mary's Stadium.
Vlaar is reported to be happy at Aston Villa, and although the club are happy to retain the player for the final year of his deal, it is thought that their stance would change if Vlaar were to express an interest in leaving the club.