PARIS, May 30 : Defending champion Coco Gauff was dramatically dethroned at the French Open by Anastasia Potapova, while world number one Aryna Sabalenka cut through the chaos to dismiss Daria Kasatkina and reach the Roland Garros fourth round on Saturday. After a brutal two days for fancied players at the claycourt Grand Slam during which Jannik Sinner and Novak Djokovic crashed out, Gauff was unable to find her best level and lost 4-6 7-6(1) 6-4 to fall by the wayside. "I don't know, I had