Osaka sails into Wimbledon last-16 as Kasatkina undone on Court One
Naomi Osaka, the 14th seed, defeated Daria Kasatkina 6-1 6-3 on Court One to reach Wimbledon’s fourth round for the first time, showcasing strong grass-court form and remaining undefeated at Wimbledon this fortnight; she could face top seed Aryna Sabalenka in the next round if Sabalenka beats Ostapenko.