Tennis greats Martina Navratilova and Lindsay Davenport took Naomi Osaka to task on Friday, saying she had failed to keep to "basic etiquette" after her Australian Open flashpoint.

Fourth seed Elena Rybakina crashes out of US Open after losing to Sorana Cirstea in women's singles third round match

Coco Gauff surged into the second round in Melbourne with a 7-6 (7/5), 6-3 victory over Venus Williams and will play unseeded Romanian Sorana Cirstea next.

Garbine Muguruza is set to take on either Frenchwoman Caroline Garcia, the seventh seed, or Russian qualifier Anna Blinkova for a place in the semi-finals.

Support has poured in from all corners after Bethanie Mattek-Sands suffered a horrible knee injury at Wimbledon 2017.

America's Bethanie Mattek-Sands suffered a horror knee injury at Wimbledon on Thursday which left her screaming and crying in pain in the middle of the court.

The World No.1 routed Sorana Cirstea 6-2, 6-0

Serena next faces unseeded Romanian Sorana Cirstea, who toppled fourth-seeded Li Na of China 6-1, 7-6 (7/5).

Serena Williams coasted into the last 16 of the French Open on Friday with a 6-0, 6-2 win over Sorana Cirstea of Romania.

Top seeded and defending champ Serena Williams destroyed Sorana Cirstea 6-1, 6-2 in one hour on Saturday to reach her second straight final at the WTA hardcourt tournament at Stanford.