Steffi Graf and Serena Williams played each other twice, and walked away with a win each.

But when it comes to winning grand slams, Graf is rooting for Williams to break her Open era record of 22 major singles titles at this month’s US Open.
“I’m cheering her on, yes,” the former top-ranked German told BSW in an interview at the Rio Olympics. “Because it’s great for the sport. Why not? She’s done so much for the sport. She’s out there working hard.”