Venus Williams continued her astonishing late-career revival by felling Anastasia Pavlyuchenkova 6-4 7-6(3) on Tuesday to reach her first Australian Open semi-final in 14 years and become the oldest woman to reach the last four at Melbourne Park in the professional era.

Venus Williams survived a rocky start to reach the second round of her 17th Australian Open on Monday, putting her 7-6 7-5 victory over Kateryna Kozlova down to hard-earned experience.

The World Anti-Doping Agency slams Russian hackers who breached its database and published confidential records of US Olympic gymnast Simone Biles and tennis stars Venus and Serena Williams.

Venus Williams moves within two wins of a possible sisterly showdown with Serena in the semi-finals of the U.S. Open by beating German 26th seed Laura Siegemund.

Serena Williams' hopes of a fifth Olympic gold medal are crushed by Ukraine's Elina Svitolina as the battle for the women's title in Rio is blown wide open.

With a record-equalling 22nd Grand Slam title wrapped up, Serena Williams insists she will never get bored of winning and that is bad news for her flagging rivals.

Serena and Venus Williams close in on a fifth all-sister Wimbledon final while beaten quarter-finalist Dominika Cibulkova prepares to rush back to Slovakia to get ready for her wedding.

Dominika Cibulkova could be forced to postpone her wedding after a shock Wimbledon win over world number three Agnieszka Radwanska, while Serena and Venus Williams march into the quarter-finals.

World number 1 and Wimbledon defending champion Novak Djokovic goes perilously close to exiting the tournament at the earliest stage since 2008 before rain intervenes.

Serena Williams defeats her sister Venus at the US Open to move within two victories of her first calendar Grand Slam.