The tapping up was the official line, but what irked them was someone from Liverpool put some stuff in the public domain about how they'd already agreed terms with VVD I think. Jamie Carragher referenced it here (and in your report Klopp apologies for "media speculation").
I can't seem to post the bleacher report link?
Try this:
Liverpool have pulled out of the race to sign Virgil van Dijk from Southampton and apologised after they were reported to the Premier League for an alleged illegal approach
www.theguardian.com
Southampton are confident that Virgil van Dijk will remain at the club next season after Liverpool were forced into a humiliating climbdown over their pursuit of the player. The south-coast club were furious to read stories on Monday that Liverpool were primed to complete a £60m move for the Holland centre-half and they reported them to the Premier League for an alleged illegal approach.
Southampton felt that Liverpool’s fingerprints were on the stories and they questioned how there could have been the belief at Anfield that Van Dijk wanted to join them given they had made no official approach for him. Moreover, they wondered how – as per the reports – Van Dijk might be so keen to play for Jürgen Klopp if he had not spoken to the Liverpool manager.
It has been reported that Van Dijk met Klopp in Blackpool to discuss the proposed transfer – which would have been in breach of the League’s rules on tapping-up. On Wednesday evening, Liverpool released a statement on their website in which they apologised to Southampton over “any misunderstanding” regarding the pursuit of Van Dijk and stated that they had formally dropped their interest in him.
“Liverpool Football Club would like to put on record our regret over recent media speculation regarding Southampton Football Club and player transfers between the two clubs,” the statement read. “We apologise to the owner, board of directors and fans of Southampton for any misunderstanding regarding Virgil van Dijk. We respect Southampton’s position and can confirm we have ended any interest in the player.”