Stewart leads way in Washington's 72-40 blowout of USC

Washington forward Jaden McDaniels, left, blocks a shot by Southern California forward Nick Rakocevic (31) during the first half of an NCAA college basketball game, Sunday, Jan. 5, 2020, in Seattle. (AP Photo/Ted S. Warren)

Washington forward Nate Roberts dunks against Southern California during the first half of an NCAA college basketball game, Sunday, Jan. 5, 2020, in Seattle. (AP Photo/Ted S. Warren)

Southern California forward Onyeka Okongwu (21) drives against Washington forward Isaiah Stewart, right, as Washington forward Jaden McDaniels (0) looks on, during the first half of an NCAA college basketball game, Sunday, Jan. 5, 2020, in Seattle. (AP Photo/Ted S. Warren)

Washington guard Quade Green, center, looks to pass between Southern California guard Ethan Anderson, right, and forward Onyeka Okongwu (21) during the first half of an NCAA college basketball game, Sunday, Jan. 5, 2020, in Seattle. (AP Photo/Ted S. Warren)

Washington forward Nate Roberts (1) reacts to a play against Southern California during the first half of an NCAA college basketball game, Sunday, Jan. 5, 2020, in Seattle. (AP Photo/Ted S. Warren)