SALT LAKE CITY (Ticker) -- Coach Rick Majerus missed a dramatic ending to Utah's 16-game home winning streak.
Majerus was ejected at the end of the first half and did not get to see Michael Morris hit a 3-pointer with 1.6 seconds left that gave Colorado State a 66-65 Mountain West Conference upset of the 23rd-ranked Utes.
After a timeout, Utah (22-6, 10-3 MWC) tried to get the ball to Tim Frost, who scored 23 points. But the ball went out of bounds at the buzzer.
Morris had 17 points to lead Colorado State (16-12, 5-8), which has won two in a row following a six-game losing streak. The Rams also got 14 points from Brian Greene and 12 from Ronnie Clark as they won for just the second time in 10 road games.
Utah led 64-58 after Britton Johnsen made a pair of free throws with 1:42 left. At the other end, Matt Nelson hit a jumper with the shot clock running down to get Colorado State within four.
The Utes reclaimed a 65-60 lead when Marc Jackson hit 1-of-2 free throws with 1:01 left, but Morris responded with a 3-pointer 22 seconds later, then - after another 3-pointer by Morris - clinched the victory after an empty possession by Utah.
Colorado State won, despite squandering a 10-point lead early in the second half. The Rams led 40-30 three minutes after intermission before Utah used a 16-6 run to forge a 46-46 tie with 10:09 left.
Frost was Utah's only scorer in double figures. Nick Jacobsen added eight points and six rebounds.
The Utes shot 58 percent (11-of-19) from the field in the second half but did not play defense to match as Colorado State shot 54 percent (13-of-24).
The loss, coupled with Brigham Young's win over Wyoming, cost Utah a shot at clinching the top seed in the MWC tournament. If Colorado State defeats BYU on Saturday and Utah beats Wyoming, the Utes can share the regular-season title with Cougars and take the top seed on a tiebreaker.