Japan's Naomi Osaka took a giant step toward her fourth grand slam title Thursday after beating her childhood idol Serena Williams in straight sets in the Australian Open semifinals.In a rematch of their 2018 U.S. Open final, when Osaka became Japan's first Grand Slam singles winner, the third seed was broken in the first game but recovered emphatically to defeat 10th seed Williams 6-3, 6-4 at Rod Laver Arena before a small crowd.Osaka will now face 22nd seed Jennifer Brady in the final after the American beat 25th seed Karolina Muchova of the Czech Republic 6-4, 3-6, 6-4 in the other semif…READ FULL ARTICLE