World number one Jannik Sinner powered into the last 16 of the French Open on Saturday, punishing outclassed Czech Jiri Lehecka as American Jessica Pegula and Russian teenager Mirra Andreeva both booked their spots in the second week.

World number one Jannik Sinner delivered a flawless performance to pulverise Czech Jiri Lehecka 6-0 6-1 6-2 in little more than 90 minutes on Saturday, to burst into the French Open fourth round and issue a ominous warning to other title contenders.

Top seed Jannik Sinner eased past French veteran Richard Gasquet in straight sets on Thursday to move into the third round at the French Open and send his opponent into retirement. Sinner won 6-3, 6-0,