Johnson, No. 11 Louisville earn win at No. 3 Duke 79-73

Duke forward Javin DeLaurier, left, and Louisville guard Darius Perry struggle for the ball during the first half of an NCAA college basketball game in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Duke guard Tre Jones (3) and forward Javin DeLaurier (12) defend against Louisville guard Darius Perry (2) during the first half of an NCAA college basketball game in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Duke guard Tre Jones (3) shoots while Louisville guard David Johnson (13) defends during the first half of an NCAA college basketball game in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Duke guard Cassius Stanley (2) and Louisville guard Samuell Williamson, right, reach for a loose ball during the first half of an NCAA college basketball game in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Louisville coach Chris Mack yells during the first half of the team's NCAA college basketball game against Duke in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Louisville guard Samuell Williamson hangs from the rim after a dunk over Duke guard Jordan Goldwire (14) during the first half of an NCAA college basketball game in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Louisville guard David Johnson (13) reaches for the ball while Duke forward Joey Baker (13) looks to pass it during the first half of an NCAA college basketball game in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)

Duke coach Mike Krzyzewski directs his team during the first half of an NCAA college basketball game against Louisville in Durham, N.C., Saturday, Jan. 18, 2020. (AP Photo/Gerry Broome)