“Felt like I had to apologize": Naomi Osaka on being booed after winning US Open

U.S. Open women's singles champion Naomi Osaka expressed cautious celebration two days after her win against Serena Williams at the U.S. Open final. "It still feels a little bit surreal but I think it's slowly sinking in," Osaka said on NBC News' TODAY show. Osaka defeated Williams 6-2, 6-4 on Saturday night to become the first Grand Slam singles champion from Japan. Her win was overshadowed by Williams' getting hit with three code violations that led to a $17,000 fine.