FIFA have confirmed they are looking into Pontus Jansson’s transfer from Torino to Leeds United.
The centre-back arrived at Elland Road on an initial season-long loan in August 2016 on a deal which included a clause to sign the Sweden international permanently.
His contract with the Whites included a clause which stated that if the 26-year-old made over 22 appearances then the club would be able to make his transfer permanent for an agreed sum.
Jansson triggered that clause and he has now made 36 appearances in all competitions and Leeds reached an agreement on a three-year deal with the player.
That deal is expected to be ratified in July after being agreed in February, but Torino claim part of the £3.5million transfer fee should have been paid once Jansson went past 22 appearances.
The Serie A club are insistent that they are owed the money now and have made a complaint to FIFA, while Leeds are confident they have kept their part of the deal.
A FIFA spokesperson quoted in the Yorkshire Evening Post, said: “We can confirm that there is a standard contractual dispute between the two clubs in connection with the international transfer of Pontus Jansson.
“Since investigations are ongoing and until proceedings are completed please understand we cannot comment further.”
Southampton are understood to have been tracking Jansson and they are believed to be prepared to pay much more than the agreed £3.5million transfer fee.