Pac-12 Networks' Ashley Adamson, Earl Watson and Richard Jefferson breakdown the action from No. 5 Oregon State men's basketball's overtime upset of No. 4 UCLA in the quarterfinal round of the 2021 Pac-12 Men's Basketball Tournament. The Beavers trailed by 10 at the half, making this the largest halftime comeback in a Pac-12 Tournament game since 2017. Warith Alatishe scored a career-best 22 points and added 10 rebounds for a double-double. And Ethan Thompson roared back from being held scoreless in the first half to putting up 18 points in the second half and overtime. The win earns No. 5 Oregon State a date with arch rival No. 1 Oregon in the tournament's semifinal round on Friday at 5:30 p.m. PT/ 6:30 p.m. MT on the Pac-12 Network.