Everton are closing in on a deal for Watford forward Richarlison which could eventually total €56m.
Richarlison played for Toffees boss Marco Silva at Vicarage Road, having signed for the Hornets from Fluminense last August.
The 21-year-old Brazilian scored five times in his opening 12 Premier League matches, but did not find the net again for the rest of the campaign.
Silva, who was finally installed in the Goodison Park hot seat earlier this summer, remains a big admirer of the player, however.
It's understood the total deal being brokered could reach €56m, provided several add-on clauses are met on top of an initial down payment of around €39m.
The transfer is expected to be completed early next week and would represent a significant return on the €12.9m investment Watford made in the player less than 12 months ago.
The two Premier League clubs have a somewhat testing relationship, with Everton seeing an initial approach for Silva rebuffed after Ronald Koeman was sacked October 2017, and Watford eventually deciding to dispense with the Portuguese coach's services in January.
Sam Allardyce was named Koeman's successor, but he was later sacked by the Toffees at the end of the season, with Silva appointed on May 31.
Nevertheless, a deal has been put in place which will see Richarlison, who was not a regular starter for Watford over the closing matches of last season, reunited with his former manager.
A source close to the transfer confirmed to Press Association Sport the negotiations had developed quickly following initial contact, but no official announcement is expected imminently.