Jessie Perry scored 13 of his 17 points in the second half, Solomon Hill had 16 points and 14 rebounds, and Arizona grinded out a 71-57 win over Colorado on Thursday night.

Arizona (17-8, 8-4 Pac-12) labored for stretches offensively, but played solid defense throughout to keep itself within reach of the Pac-12 lead. The Wildcats steadily built the lead to nine midway through the second half. And Perry, with some help from Hill, made sure Colorado didn't come back.

Perry also had 11 rebounds and Kyle Fogg added 15 points for Arizona.

Colorado (16-8, 8-4) kept up with the Wildcats for a while, but couldn't match their second-half intensity and lost for the fourth time in five conference road games.

Andre Roberson had 12 points and 11 rebounds to lead the Buffaloes, who were 4 for 19 from 3-point range. Carlon Brown added 11 points