Serena Williams is using her sports stardom for greatness. 

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The tennis star was appointed the new Goodwill UNICEF Ambassador. In her new role, Williams will be able to bring attention to children who are suffering from poverty and lack of education.

She joins the ranks with past and present ambassadors, such as Angela Bassett, Selena Gomez, and Laurence Fishburne.

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The elated tennis champ tweeted, “About to go onstage at UNICEF Social Good Summit. Announcing new ambassadorship.”

Congrats, Serena!