On Friday night at the U.S. Open, Serena Williams looked like she was in a bit of trouble after dropping her first set to fellow American Bethanie Mattek-Sands.

However, in typical Serena fashion, she pulled off a massive comeback in the last two sets, which included doing the splits — the splits — and still winning the point.

Just Serena being Serena. It’s casual.

(Thanks to Ben Celestino for the Vine.)