Everton are reportedly considering keeping Eliaquim Mangala but Premier League newcomers Wolverhampton Wanderers are also allegedly keen.
Former Everton boss Roberto Martinez has been discussing his time at his old club and what he feels is needed to progress.
Newcastle United lost against Everton at Goodison Park in the Premier League on Monday.
Everton secured a narrow 1-0 win over Newcastle United on Monday night, keeping their ninth clean sheet of the campaign.
Championship underachievers Leeds United want to sign centre-back Matthew Pennington on a permanent basis from Premier League Everton.
Everton signed Theo Walcott from Premier League rivals Arsenal and he scored the winner against Newcastle United at Goodison Park.
Premier League quartet Everton, Leicester City, Tottenham Hotspur and Arsenal all want Ricardo Pereira from Primeira Liga contenders FC Porto.
Everton might have beaten Newcastle United on Monday but, contrary to Sam Allardyce's comments, it was a woeful performance.
Everton winger Theo Walcott delivered in front of Gareth Southgate in one last bid to reach the finals in Russia.
Everton have reportedly made Leicester City's Jamie Vardy their number one transfer target, but Premier League rivals Liverpool should look closely.