By Howard Fendrich MELBOURNE, Australia (AP) — American tennis star Coco Gauff mourned the loss of TikTok’s app back home, writing on a TV camera lens “RIP TikTok USA” and drawing a broken heart right after winning a match at the Australian Open to reach the quarterfinals. Gauff’s 5-7, 6-2, 6-1 victory over Belinda Bencic […]