Sporting CP are playing hard ball with Everton regarding star Wendel.
The central midfielder is a key target for Carlo Ancelotti's team.
However, Plataforma reports that a €15 million offer from Everton was turned down.
Sporting would prefer at least €20 million.
The club are aware they have to sell players this summer to balance their books and rejuvenate their squad.
The Brazilian has played 67 games in all competitions for the club since arriving from Fluminense.