Fulham's deal for Sporting CP midfielder Joao Palhinha.

The Cottagers had believed they'd struck a deal with Sporting for Palhinha worth €20m.

But a disagreement between agents is holding up the transfer.

The Sun says a disagreement over payment involving Palhinha's Spanish agent Hernan Reguera and Jorge Mendes means that the player is still in Lisbon awaiting a resolution.

Reguera is said to have negotiated Palhinha's entire five-year deal to Fulham.

However, Sporting had previously given contractual exclusivity to Mendes to sort Palhinha's move to England when Wolves were interested.