In this Saturday Jan, 4, 2020, photo, New Orleans Pelicans rookie Zion Williamson looks up during a workout before the Pelicans played the Sacramento Kings in an NBA basketball game in Sacramento, Calif. Williamson, who is recovering from a knee injury, has now participated in full-court and five-on-five drills as the top overall draft choice moves closer to making his league debut. (AP Photo/Rich Pedroncelli)

North Carolina guard Cole Anthony (2) reacts from the sidelines with an injury during the first half of an NCAA college basketball game against Yale in Chapel Hill, N.C., Monday, Dec. 30, 2019. (AP Photo/Gerry Broome)

RETRANSMISSION TO CORRECT CITY - Virginia forward Jay Huff (30) and North Carolina guard Cole Anthony, right, collide under the basket during the first half of an NCAA college basketball game in Charlottesville, Va., Sunday, Dec. 8, 2019. (AP Photo/Steve Helber)

Denver Nuggets forward Michael Porter Jr. (1) dunks as Atlanta Hawks forward John Collins (20) and guard Trae Young defend during the second half of an NBA basketball game Monday, Jan. 6, 2020, in Atlanta. (AP Photo/John Amis)

Utah Jazz forward Royce O'Neale, left, defends as Brooklyn Nets guard Kyrie Irving (11) passes the ball during the second half of an NBA basketball game Tuesday, Jan. 14, 2020, in New York. The Jazz defeated the Nets 118-107. (AP Photo/Kathy Willens)

FILE - In this Wednesday, Feb. 20, 2019, file photo, Duke's Zion Williamson sits on the floor following an injury during the first half of an NCAA college basketball game against North Carolina, in Durham, N.C. As his Nike shoe blew out, Williamson sprained his right knee on the first possession of what became top-ranked Duke's 88-72 loss to No. 8 North Carolina. (AP Photo/Gerry Broome, File)

Denver Nuggets' Michael Porter Jr. reacts during the second half of the team's NBA basketball game against the Indiana Pacers, Thursday, Jan. 2, 2020, in Indianapolis. Denver won 124-116. (AP Photo/Darron Cummings)