Barack Obama, LeBron James react to Zion Williamson’s injury

A trainer holds Duke’s Zion Williamson’s shoes after Williamson left the game due to an injury during the first half of an NCAA college basketball game against North Carolina in Durham, N.C., Wednesday, Feb. 20, 2019. (AP Photo/Gerry Broome)A detailed view of the shoe worn by Zion Williamson #1 of the Duke Blue Devils against the North Carolina Tar Heels during their game at Cameron Indoor Stadium on February 20, 2019 in Durham, North Carolina. (Photo by Streeter Lecka/Getty Images)S