Jannik Sinner climbed into the stands after winning the U.S. Open title Sunday to hug the people rooting hardest for him in a crowd that was largely behind his American opponent. Seal was happy to be among them. The British singer and No. 1-ranked men’s tennis player from Italy became friends at the U.S. Open two years ago and Seal was back to watch Sinner beat Taylor Fritz 6-3, 6-4, 7-5 to win the tournament for the first time.