Naomi Osaka has become the first Asian world No. 1 following her Australian Open triumph.
    Tennis

    Osaka ousts Kvitova to claim Australian Open title

    Roger Federer congratulating Stefanos Tsitsipas after the 20-year-old Greek defeated him to reach the quarter-finals of the Australian Open.
    Tennis

    Federer dumped out of Australian Open by Tsitsipas

    Serena Williams (left) consoling Ukrainian teenager Dayana Yastremska, who was in tears after losing 6-2, 6-1 to the American.
    Tennis

    Serena consoles beaten teen: You did amazing

    Maria Sharapova (above) will meet Ashleigh Barty next.
    Tennis

    Sharapova stuns defending champion Wozniacki

    Caroline Wozniacki is learning to take extra care of her body as she battle with rheumatoid arthritis.
    Tennis

    Wozniacki learns to listen to her body ahead of title defence

    Caroline Wozniacki has lost for the first time since winning the Australian Open title last Saturday.
    Tennis

    Wozniacki stunned in St Petersburg

    Roger Federer is on course for a record 20th Grand Slam title.
    Tennis

    More Slam glory beckons for ageless Federer

    Caroline Wozniacki will become the new world No. 1 when the rankings are announced on Monday.
    Tennis

    Wozniacki, a Grand Slam champion at last

    Roger Federer giving words of encouragement to South Korean sensation Chung Hyeon, who retired injured in the second set of their semi-final.
    Tennis

    Federer into final as Chung retires injured

    Chung Hyeon has become the youngest men's semi-finalist at a Grand Slam in eight years.
    Tennis

    South Korea's Chung charges into Australian Open semis