(Corvallis, OR) -- The Oregon State baseball team will host the Corvallis Regional this weekend as the Number One national seed in the NCAA tournament. The Beavers will play UNLV Friday in a regional that also includes UC Irvine and North Dakota State. The Oregon Ducks will head to Nashville for a regional hosted by Vanderbilt, and will play Clemson Friday morning. Xavier is the fourth team in the regional lineup.