Everton boss Marco Silva is targeting a reunion with Watford midfielder Abdoulaye Doucoure, but Arsenal and PSG are also in the race.
Silva worked with Doucoure during his brief spell in charge at the Hornets and hopes that connection might help tempt him to Everton.
Meanwhile, Arsenal boss Unai Emery is looking to add power to his midfield and replace Aaron Ramsey.
The Ligue 1 leaders are offering £30million for the Hornets star, who has emerged as a key player at Vicarage Road.