Flo Rida, Troye Sivan to join Djokovic, Nadal for kids’ day
NEW YORK (AP) — The new retractable roof at the U.S. Open will see its first major action during Arthur Ashe Kids' Day, as Flo Rida, Troye Sivan and others join defending men's champion Novak Djokovic (NOH'-vak JOH'-kuh-vich) and former champ Rafael Nadal for music, tennis and other kid-friendly activities.