No. 1 USC hosts Cal State Northridge in the first round of the MPSF tournament.
After taking down rival UC Irvine, USC ups its consecutive wins to 15.
Senior outside hitter Tony Ciarelli leads Trojans to wins over a pair of top-15 teams.
Taking a break from conference play, USC faced a tough test at the Galen Center Thursday.
A week after being swept at home by UCLA, USC repaid the favor to Pepperdine.