Eurosport's Alex Corretja and Mats Wilander have given their views ahead of the huge quarter-final clash between Novak Djokovic and Jannik Sinner at Wimbledon. Djokovic, who is the defending champion and top seed at the All England Club, has an extremely tough draw in having to face the rising star from Italy in the last eight on Tuesday afternoon. Ad/> Sinner, the 10th seed, has shown his incredible promise already in the tournament by beating both John Isner — Andy Murray's conqueror — and fellow emerging talent Carlos Alcaraz.