Buffs Open Pac-12 Tourney Against Cal

Jabari Walker had 23 points and 11 rebound in a CU win over Cal earlier this season.

LAS VEGAS — Here's one guarantee concerning the Colorado Buffaloes' Pac-12 tournament opener Thursday night at T-Mobile Arena:

Colorado won't be overconfident.

When the No. 23 and third-seeded Buffs (20-7) square off against 11th-seeded Cal (9-19) at 9:30 p.m. (MT), they will no doubt remember the 71-62 loss they suffered on the Bears' home floor in mid-February. The loss proved to be one of the bigger upsets of the Pac-12 season — Cal finished with a 3-17 conference mark — and came on the front end of Colorado's only two-game losing streak of the year.

Since that two-game skid, the Buffs have won four in a row…