#4 Ross Barkley and John Stones

The fourth pair of former teammates who will be going head to head tomorrow are the English duo of John Stones and Ross Barkley, who used to play together at Everton. Ross Barkley is an academy product of the Merseyside club, while Stones joined the club in 2013.
Stones was brought by Pep Guardiola in his first season at Manchester City and paid a huge £47.5 million for the defender. Ever since, he has become one of the finest centre-backs in England and even made it into the Three Lions' squad for the World Cup last summer, where they finished fourth.
On the other hand, Barkley left his boyhood club last summer and joined Chelsea under new manager Maurizio Sarri, after being left out of the final squad for the 2018 World Cup in Russia.