Serena Williams rampaged through her first four matches at the US Open, dropping only 12 games along the way, but she says she has not even started out strongly on the Flushing Meadows hard courts.
China's tennis chief said the lack of systematic education has been the root of Li Na's weak nerves that led to a sudden meltdown during games.
A ruthless Serena Williams charged into the US Open quarter-finals on Monday with a 6-0 6-0 win over Czech Andrea Hlavackova after Roger Federer was gifted a spot in the last eight when Mardy Fish withdrew from the year's final grand slam.
Roberta Vinci toppled second seed Agnieszka Radwanska to cap a rousing upset double for Italy at the US Open after her doubles partner Sara Errani stormed into the women's singles quarter-finals.
Defending champion Sam Stosur ended the giant-killing run of 18-year-old Briton Laura Robson with a hard-fought 6-4 6-4 win in the fourth round of the US Open on Sunday.
Maria Sharapova shrugged off a verbal jab from Nadia Petrova about being saved by the rain after sneaking into the quarter-finals of the U.S. Open on Sunday.
Roger Federer, Serena Williams and Andy Murray are the headline acts at the US Open as two bitter rivals resume hostilities after they refused to shake hands at the first major championship of the year.
Roy Hodgson has launched a passionate defense of England's old guard as he prepares to use the aging stars to form the spine of his team for the 2014 World Cup qualifiers.
Swiss star hopes his rival won't miss rest of season with injury
British teen Laura Robson stunned Chinese ninth seed Li Na at the US Open on Friday.
Andy Roddick, a former top-ranked player and the last American male to win a Grand Slam tournament, said on Thursday that he will retire after the US Open.
British teenager Laura Robson drew the curtain on Kim Clijsters' illustrious singles career by eliminating the former world number one from the US Open.