Weekend in Sport: Naomi Osaka signals new dawn in women's tennis; Solskjaer keeps Man U winning; Australia gives up Asian Cup defense

    Japan's Naomi Osaka celebrates with the championship trophy during the presentation ceremony after her victory against Czech Republic's Petra Kvitova.

    (CNN)Naomi Osaka brings youthful challenge to women's tennis... Solskjaer's Man United carry winning ways into FA Cup... Australia crashes out of Asian Cup... Warriors' streak continues... 13-year-old Alysa Liu makes figure skating history. This is your weekend in sport.

    New No. 1 Osaka takes on the mantle

    Naomi Osaka celebrates a point during the Australian Open final.
    With Andy Murray tearfully announcing his impending retirement, and Roger Federer bundled out by 20-year-old Stefanos Tsitsipas, it was tempting to hope for a changing of the guard in men's tennis at this year's Australian Open.
      The men aren't ready for that just yet, with veterans Novak Djokovic and Rafael Nadal meeting for the 53rd time on Sunday to contest the final. The Serb triumphed 6-3 6-2 6-3, winning a record seventh Aussie Open title in one of the most one-sided finals in the season-opening major in years.
      Rafael Nadal and Novak Djokovic meet in the men's final of the Australian Open.