:Top-seeded Italian Jannik Sinner shrugged off the doping furore surrounding him and overcame a bad start to reach the second round of the U.S. Open with a 2-6 6-2 6-1 6-2 victory over American Mackenzie McDonald on Tuesday. Sinner became embroiled in controversy in the week before the year's final Grand Slam after the International Tennis Integrity Agency said that he tested positive twice for an anabolic agent in March. The Australian Open champion, who has denied wrongdoing, has been under

Tag-uri: Australian Open