(Tucson, AZ) -- Oregon State fell 62-53 to number-21 Arizona in a Pac-12 game in Tucson. The Beavers have lost 33 of 34 at the McKale Center. Arizona converted 17 Oregon State turnovers into 20 points. The Beavers will play number-11 Arizona State tomorrow in Tempe. OSU slipped to 10-and-6 overall and 2-and-2 in conference play.