Alexei Popyrin believes the lessons he gleaned after the best win of his soaring career over Novak Djokovic will stand him in good stead as he now shoots for his first grand slam quarter-final.
But Australia's No.2 has dismissed the idea he'll have an advantage over his French Open fourth-round opponent Tommy Paul, who's had to battle through two successive gruelling five-setters, as he hailed the American iron man as one of the fittest players on tour.
Popyrin had his finest grand slam moment when he beat the mighty Djokovic at the US Open last August in the third round, but couldn't back up that win when then bowing out to Frances Tiafoe in his first fourth-round date.