An emotional Novak Djokovic beat Stefanos Tsitsipas Sunday to claim a 10th Australian Open title and equal Rafael Nadal's 22 Grand Slam crowns, a victory that returned him to world number one. The Serbian star overcame a hamstring injury and off-court drama on his return to Melbourne Park to sweep past the Greek third seed 6-3, 7-6 (7/4), 7-6 (7/5) on Rod Laver Arena. He surged to victory without father Srdjan in the stands after he sparked controversy by posing with a fan carrying a Russian flag featuring Vladimir Putin's face following his son's quarter-final win.