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.
      But while the men's sport is still waiting for its young guns to step up -- Tsitsipas looked bereft against Nadal in his semifinal, and 24-year-old Frenchman Lucas Pouille barely strung two points together against Djokovic -- Naomi Osaka, the 20-year old Japanese-American who won her long, often grueling final against Petra Kvitova on Saturday, is more than ready to take on the mantle of the player to beat.
      Czech Republic's Petra Kvitova reacts during the Australian Open women's final.
      Osaka, who beat her idol Serena Williams last summer to win her first major, is the first woman to follow her debut slam with another since Jennifer Capriati in 2001, and the first to win two in a row since Williams in 2015. The win bags her the world No. 1 slot for the first time, and while she still often fails to put away opponents when the opportunity presents itself, her future is undoubtedly bright.
      After it was all over Saturday, the 21-year-old admitted that at the trophy presentation she "forgot to smile." But the watching tennis world didn't.

      Solskjaer marches on; FA Cup continues to provide upsets