The Saints defender is a fitness doubt for the Premier League game away at Newcastle United this weekend.
The Saints summer signing played against the Austrian's teams in the Bundesliga and is eager to be part of his philosophy at the Premier League club.
The Saints centre-back is the only player in his position signed by the club since Van Dijk's move to Liverpool.
Southampton lost 1-0 at Cardiff City on Saturday afternoon.
Southampton lost to Cardiff City in the Premier League on Saturday.
Southampton drew 2-2 with Brighton on Monday night.
A brush with relegation last season was a warning for Southampton - but how much have they done to fix the problems that saw the club under such pressure last time around?
Southampton are reportedly nearing the signing of Borussia Monchengladbach defender Jannik Vestergaard.
West Ham had been linked with a move for the Danish centre back.
Southampton are reportedly pushing for Jannik Vestergaard's signature.
Premier League duo Spurs and Manchester United reportedly want Sporting Lisbon's Fernandes.
Where would Tottenham move for Tanguy Ndombele leave Arsenal?
Tottenham Hotspur chairman Daniel Levy is playing a patient game.
The Real Betis ace is a reported transfer target for Liverpool.
Leeds talent confirmed he is set to leave the club.
Tottenham Hotspur boss Mauricio Pochettino has been pushing for signings this summer.
Tottenham Hotspur boss Mauricio Pochettino is said to be keen on Bruno Fernandes.
Aston Villa will be hoping to secure the signature of the ever-popular figure Tyrone Mings this summer as they prepare for Premier League football.
Leeds United will be hoping to go one better next season and earn promotion to the Premier League.
Celtic are reportedly interested in departing Everton defender Phil Jagielka.