LAS VEGAS -- Spencer Butterfield's 3-pointer and subsequent go-ahead free throws, after a Colorado State technical foul, keyed Utah State's 73-69 comeback victory over the Rams in the first round of the Mountain West Conference tournament on Wednesday.

Trailing 66-57 with 1:35 left, Utah State scored the next 12 points to start a 16-3 run to close the game.

Jalen Moore's 3-pointer pulled Utah State within 66-62 and his steal set up Butterfield's trey. Colorado State's Daniel Bejarano was called for a technical foul and Butterfield made both free throws for a 67-66 lead. Moore and Butterfield combined to make the next six-free throw attempts.

Preston Medlin led eighth-seeded Utah State (18-13) with 17 points. Butterfield and TeNale Roland had 14 each.

Dwight Smith scored a career-high 21 points for Colorado State (16-16) and Jon Octeus added 19 for the No. 9 seed.

Utah State will face top-seeded San Diego State Thursday.