(Undated)  --  The number-one ranked Oregon State Beavers will host the Washington Huskies in Pac-12 play beginning this weekend in Corvallis.  The first game of the three-game is tonight.  The Beavers are 18-and-1.  Oregon will play Cal in a three-game Pac-12 series beginning tonight.  The Ducks were swept by Arizona State to begin their conference play last weekend and are 12-and-7 overall.  Portland will host San Francisco in a WCC weekend series, which starts tonight.