SOUTHAMPTON are poised to ask the English Premier League to investigate an alleged illegal approach from Liverpool for ex-Celtis defender Virgil van Dijk.
The Anfield side have been linked with a £60million move for the Dutch international centre-half, who is understood to have told them he prefers a move to Merseyside ahead of Chelsea and Manchester City.
But the Saints insist they have not yet had any official bids for any of their players.
They are determined to hold on to the 25-year-old defender and chairman Ralph Krueger stated last month they would be prepared to reject bids of up to £60million to keep the player.
Sources indicate Van Dijk has been impressed with manager Jurgen Klopp’s personal involvement in Liverpool’s effort to sign him.
And with Van Dijk’s preference for making the move to Anfield becoming known, Manchester City have ended their interest in signing the player.
Celtic, who sold the centre-back for £13million in September 2015, stand to pick up 15 per cent of the south coast club’s transfer profit if – or when – Van Dijk moves on.