No. 21 UCLA faces USC in matchup of Pac-12's top teams

Cody Riley, right, of UCLA, drives to the basket against Oregon State in the first half of an NCAA college basketball game Saturday, Jan. 30, 2021, in Los Angeles. (Keith Birmingham/The Orange County Register via AP)

Southern California forward Evan Mobley (4) blocks a shot by Stanford guard Noah Taitz (20) during the second half of an NCAA college basketball game in Stanford, Calif., Tuesday, Feb. 2, 2021. Southern California won 72-66.(AP Photo/Tony Avelar)

Southern California forward Isaiah Mobley (3) takes a shot over Stanford forward Brandon Angel (23) during the first half of an NCAA college basketball game in Stanford, Calif., Tuesday, Feb. 2, 2021. (AP Photo/Tony Avelar)

Southern California forward Evan Mobley (4) takes a shot over Stanford forward Lukas Kisunas (32) during the second half of an NCAA college basketball game in Stanford, Calif., Tuesday, Feb. 2, 2021. Southern California won 72-66.(AP Photo/Tony Avelar)

Jake Kyman (13) of the UCLA Bruins shoots a three pointer against the Washington State Cougars in the first half of a NCAA basketball game at Pauley Pavilion on the campus of UCLA in Westwood on Thursday, Jan. 14, 2021. (Keith Birmingham/The Orange County Register via AP)

Head coach Mick Cronin speaks with Tyger Campbell #10 of the UCLA Bruins against the Oregon State Beavers in the first half of a NCAA basketball game at Pauley Pavilion in Westwood on Saturday, January 30, 2021. (Keith Birmingham/The Orange County Register via AP)

Tyger Campbell, center, of UCLA, drives to the basket against the Oregon State defense in the first half of an NCAA college basketball game Saturday, Jan. 30, 2021, in Los Angeles. (Keith Birmingham/The Orange County Register via AP)