Is Serena Williams the greatest American tennis player ever? That’s the question that’s being debated a day after the 32-year-old star won her 18th Grand Slam title at the U.S. Open over the weekend. She’s certainly made a strong case for herself, but it’s also clear that she’s spent a lifetime perfecting her craft. Here’s a video from 1992 when 11-year-old Serena was profiled along with her 12-year-old sister Venus. They’re without a doubt the greatest sibling duo to ever take the tennis court.