Blanco Brown, Novak Djokovic, more headline US Open Kids Day

The "Git Up Challenge" is coming to Arthur Ashe Kids' Day, courtesy of Blanco Brown. The country star will be among the celebrities and athletes headlining the 24th annual Arthur Ashe Kids' Day at the U.S. Open later this month

NEW YORK -- The "Git Up Challenge" is coming to Arthur Ashe Kids' Day, courtesy of Blanco Brown.

Others scheduled to participate include "The Lion King" star JD McCrary, singers Ava Max and Meg Donnelly, as well as reigning U.S. Open's men's champion Novak Djokovic, former champion Rafael Nadal and former women's champ Sloane Stephens.