
In another first-round shocker, three-time Olympic doubles gold medalists Venus and Serena Williams lost in straight sets to the Czech Republic’s Lucie Safarova and Barbora Strycova.
It is the siblings’ first Olympic loss together, having won gold as a pair at the Sydney 2000 Games, Beijing 2008 Games and London 2012 Games.
READ MORE AT NBCOlympics.com
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