Novak Djokovic sailed into a record 19th French Open quarter-final on Monday, while world number one Jannik Sinner dismantled Andrey Rublev in straight sets. World number 361 Lois Boisson knocked out women’s third seed Jessica Pegula to become the first home quarter-finalist at Roland Garros since 2017.

For all of Novak Djokovic's titles (100 in all) and Grand Slam trophies (24) and weeks at No. 1 (428, more than anyone else in tennis history), for all of his talent and determination, the guy still can find himself worrying about what is going on with his game.