George Best and Mike Summerbee were best friends when they were turning out for Manchester United and Manchester City respectively in the 1960s, while David de Gea and Sergio Aguero remained close throughout their time in Manchester too.

Why do footballers love going on holiday with one another? It is not something the rest of us tend to do with our colleagues, but when working in a high-profile career at rarefied levels of fame and wealth the only people who can truly understand you are your peers.

Virgil van Dijk will sign a contract extension with Liverpool, a report has claimed, after the Dutchman's agent telegraphed an agreement between the player and club