Jannik Sinner was down and out against Grigor Dimitrov, but was lucky enough to qualify for the quarterfinal after Dimitrov retired due to a pec muscle tear. Sinner is one of the hot favourites to win the title alongside Carlos Alcaraz and Novak Djokovic,

But Sinner must first get past the American Shelton having survived an almighty scare against Grigor Dimitrov on Monday, in which he was two sets down before his opponent was forced to retire through injury.