OPINION
Ronald Koeman must look to bolster his options at the heart of his Everton defence in the coming months with doubts surrounding the future of veteran Phil Jagielka.
With just 12 months remaining on his contract at Goodison Park, the 34-year-old told Sky Sports last month that his future was in doubt on Merseyside – and losing him would leave Koeman with just two senior centre-backs.
This Is Futbol considers three central defenders that Everton could aim to sign for free this summer in order to provide cover for Ashley Williams and Ramiro Funes Mori ahead of a potential Europa League cup run.
Here are those three free agents, including a three-times Champions League winner: