Novak Djokovic equaled the record of former coach Andre Agassi with a 26th consecutive victory at the Australian Open to reach the semi-finals.
Billie Jean King called for Wimbledon to allow Russian and Belarusian players to compete at the All England Club this year as Aryna Sabalenka set up the possibility of an all-Belarus Australian Open final.
Tommy Paul got the better of fellow American Ben Shelton to reach his first grand slam semi-final at the Australian Open.
Aryna Sabalenka will take on surprise package Magda Linette in the semi-finals of the Australian Open.
Two-time former champion Victoria Azarenka ended a 10-year wait to return to the Australian Open semi-finals with a straight-sets victory over Jessica Pegula.
Novak Djokovic says accusations from critics that he is "faking" his hamstring injury are only adding to his motivation to win the Australian Open title.