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Osaka hits balls into the stands after her win against Anett Kontaveit of Estonia on day seven of the 2020 US Open tennis tournament. Robert Deutsch-USA TODAY Sports via Reuters

Osaka, who won her seventh match of the US Open tennis tournament on September 6, next sported a mask with the name of Trayvon Martin.

Martin, who was 17 at the time, was shot and killed on February 26, 2012, by George Zimmerman, who was a neighborhood watch volunteer in Sanford, Florida. Zimmerman claimed that he shot Martin, who unarmed and leaving a convenience store, out of self-defense.

Zimmerman was charged with second-degree murder and was later acquitted of the charges.

After Osaka was shown wearing her mask with Travyon Martin's name, Sabrina Fulton, Martin's mother, thanked the tennis player in an ESPN interview.

Osaka responded to the ESPN videos of Martin's mother and Arbery's father on Twitter, where she wrote: "I often wonder if what I'm doing is resonating and reaching as many people as I hope. That being said, I tried to hold it in on set but after watching these back I cried so much. The strength and the character both of these parents have is beyond me. Love you both, thank you."

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