Kanepi takes the 2nd set 6-4 over Serena...

Seeking her 3rd #USOpen QF, get to know 🇪🇪 @KanepiKaia...

📖: https://t.co/KY7qQwy2mH pic.twitter.com/NL0nXdqukY

— US Open Tennis (@usopen) 2 de septiembre de 2018