Everton are keen on signing Sporting Lisbon winger Gelson Martins, according to the Daily Telegraph.
Martins is one of several players who is seeking to terminate his contract at the club this week, and the 23-year-old - who is part of Portugal's World Cup squad - is attracting interest from plenty of clubs across Europe.
Marcel Brands, Everton's new sporting director, and manager Marco Silva have identified Martins as a key target having not yet added a player to the squad.
The Blues are also monitoring the highly-rated young Ajax defender Matthijs De Ligt, who could cost as much as £50m.