After taking home a massive victory at Saturday’s U.S. Open, tennis star Naomi Osaka cemented her status as the reigning women’s tennis champion of the year. Her victory against Belarusian tennis play Victoria Azarenka meant she took home her third Grand Slam title in just three years. But the biggest part of Osaka’s win was the powerful statement she decided to make in every match leading up to it.

The 22-year-old walked into the Arthur Ashe Stadium each day using her platform to remind the world of racial injustice.

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For each of her matches, the tennis star wore masks emblazoned with the names of Black victims of police violence.

For her final match, Osaka arrived with a mask with Tamir Rice’s name. Rice was a 12-year-old boy who was murdered by Cleveland police officer Timothy Loehmann in 2014. At the time of his murder, Rice had been carrying a replica toy gun and had been shot by Loehmann almost as soon as the officer arrived at the scene he’d been called to. Reports notes that the caller claimed that a male was pointing “a pistol” at random people but also noted that it was “probably fake.”

Osaka used her platform to also honor Black victims such as Breonna Taylor, Elijah McClain, and Ahmaud Arbery.

Breonna Taylor was a Black woman who lost her life after being fatally shot by police in March while she was sleeping in her home. Elijah McClain was killed by police in August 2019 after being put in a chokehold. Ahmaud Arbery was killed while on a jog in February. Osaka also wore the names of Trayvon Martin and Philando Castille. At the time Martin’s death in 2012, he was just 17-years old. Castille was fatally shot by police during a traffic stop in 2016.

“I feel like I’m a vessel at this point in order to spread awareness,” Osaka noted to ESPNW after her quarter-final win earlier last week. At the time, Osaka sported a mask bearing George Floyd’s name. Floyd’s murder in May, sparked protests across the country.

In seeing Osaka’s dedication to his son, Ahmaud Arbery’s father Marcus Arbery, Sr. told Osaka in a video message, “God bless you for what you’re doing.” Osaka later remarked in a tweet that after watching the video messages she “cried so much. The strength and the character both of these parents have is beyond me.”

After being asked about the intention behind the masks and what message she was intending to get a cross in a post-match interview, Osaka asked “Well, what was the message you got?… I feel like the point is to make people start talking.”