![Rei Sakamoto during a junior boys' singles match at the 2023 US Open, Monday, Sep. 4, 2023 in Flushing, NY. (Andrew Ong/USTA via AP Stock Photo - Alamy Rei Sakamoto during a junior boys' singles match at the 2023 US Open, Monday, Sep. 4, 2023 in Flushing, NY. (Andrew Ong/USTA via AP Stock Photo - Alamy](https://c8.alamy.com/comp/2RPHE64/rei-sakamoto-during-a-junior-boys-singles-match-at-the-2023-us-open-monday-sep-4-2023-in-flushing-ny-andrew-ongusta-via-ap-2RPHE64.jpg)
Rei Sakamoto during a junior boys' singles match at the 2023 US Open, Monday, Sep. 4, 2023 in Flushing, NY. (Andrew Ong/USTA via AP Stock Photo - Alamy
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ZooTennis: Blanch Ousts Top Seed Demin at ITF J300 in Brazil; Jovic and Sakamoto Lead Fields for San Diego J300; Stearns Advances to WTA Austin Quarterfinals; Michelsen Reaches Waco Challenger Quarterfinals; Montero
![Milan, Italy. 27th May, 2023. Tennis Club Milano, Milan, Italy, May 27, 2023, Rei Sakamoto and Federico Cina during 2023 Bonfiglio Trophy - Tennis Internationals Credit: Live Media Publishing Group/Alamy Live News Stock Photo - Alamy Milan, Italy. 27th May, 2023. Tennis Club Milano, Milan, Italy, May 27, 2023, Rei Sakamoto and Federico Cina during 2023 Bonfiglio Trophy - Tennis Internationals Credit: Live Media Publishing Group/Alamy Live News Stock Photo - Alamy](https://c8.alamy.com/comp/2R4E68C/milan-italy-27th-may-2023-tennis-club-milano-milan-italy-may-27-2023-rei-sakamoto-and-federico-cina-during-2023-bonfiglio-trophy-tennis-internationals-credit-live-media-publishing-groupalamy-live-news-2R4E68C.jpg)
Milan, Italy. 27th May, 2023. Tennis Club Milano, Milan, Italy, May 27, 2023, Rei Sakamoto and Federico Cina during 2023 Bonfiglio Trophy - Tennis Internationals Credit: Live Media Publishing Group/Alamy Live News Stock Photo - Alamy
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ZooTennis: My US Open Juniors Recap; Four International Juniors Advance to Champaign $15K Quarterfinals; Rabman, Horovitz Reach Montreal J2 Finals; US Wins Again in Davis Cup Group Play
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Junior wrap: Ngounoue scores an upset on Day 1 of US Open Junior Championships - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![Rei Sakamoto during a junior boys' singles match at the 2023 US Open, Monday, Sep. 4, 2023 in Flushing, NY. (Andrew Ong/USTA via AP Stock Photo - Alamy Rei Sakamoto during a junior boys' singles match at the 2023 US Open, Monday, Sep. 4, 2023 in Flushing, NY. (Andrew Ong/USTA via AP Stock Photo - Alamy](https://l450v.alamy.com/450v/2njdtwk/rei-sakamoto-in-action-during-a-junior-boys-singles-match-at-the-2022-us-open-sunday-sep-4-2022-in-flushing-ny-manuela-daviesusta-via-ap-2njdtwk.jpg)