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Serena Williams (L) of the United States shakes hand with Giulia Gatto-Monticone of Italy after the women's singles first round match at the 2019 Wimbledon Tennis Championships in London, Britain, July 2, 2019. (Xinhua/Han Yan)
Serena Williams (L) of the United States shakes hand with Giulia Gatto-Monticone of Italy after the women's singles first round match at the 2019 Wimbledon Tennis Championships in London, Britain, July 2, 2019. (Xinhua/Han Yan)