- Pliskova beats Williams at US Open
- Karolina is identical twin to Kristyna
- Czechs are both tennis pros
- Inspired by Williams sisters
(CNN)Has Karolina Pliskova's shock win over Serena Williams at the US Open heralded the advent of a new sister act in tennis?
As for Serena, she had this to say when asked if she'd ever entertained the thought of an identical copy of herself competing on the WTA Tour.
"It would be a living hell," she told reporters after overcoming fifth-seeded Romanian Simona Halep in three sets in the quarterfinals at Flushing Meadows in New York Wednesday.