The Cougs host Cal in a midweek matchup inside Beasley Coliseum.
CJ Elleby scored 22 points and grabbed 13 rebounds in the loss to USC.
WSU has the chance to split the season with the Trojans.
The Cougs played their second OT game against the Bruins in as many contests.
The Cougs go for their first season sweep of the Bruins in the modern era.
The sophomore took home his second weekly award of the season.