Photos: Arizona vs. Colorado college basketball
The Buffaloes stampede into McKale for University of Arizona's Pac-12 season opener on Thursday, Jan. 3.
Arizona vs. Colorado college basketball
Arizona guard Mark Lyons (2), left, walks off the court with Arizona forward Brandon Ashley (21) while the officials review Colorado's shot as time expired with the score tied in their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona guard Nick Johnson (13)grabs the ball after poking it away from Colorado guard Askia Booker (0) late in the first half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Colorado forward Andre Roberson (21), left, wins the battle for rebound over Arizona guard/forward Kevin Parrom (3), center, and Arizona forward Solomon Hill (44) in the first half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona guard Mark Lyons (2) gets fouled from behind by Colorado forward/center Shane Harris-Tunks (15) as he drives into the paint in the first half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona forward Solomon Hill (44) lofts a soft jumper over Colorado forward Xavier Johnson (2) in the second half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona forward Grant Jerrett (33) pressures Colorado guard Sabatino Chen (23) as he works his way around the key in the first half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona forward Brandon Ashley (21) and Arizona center Kaleb Tarczewski (35) swarm over Colorado forward Josh Scott (40) as they scramble for a loose ball in the second half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona guard Mark Lyons (2) loses his grip on the ball as he runs into Colorado forward Xavier Johnson (2) on his drive along the lane in overtime of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona guard/forward Solomon Hill, center, tries to split Colorado forward Josh Scott (40), left, and Colorado forward Xavier Johnson (2) in the second half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona guard Nick Johnson (13), left, and Arizona guard Mark Lyons (2) embrace after the Wildcats 92-83 overtime win against Colorado in their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona guard Nick Johnson (13) screams at the crowd after he and his teammates saw the replay on the big screen of Colorado's last shot as time expired in the second half of their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
Arizona vs. Colorado college basketball
Arizona head coach Sean Miller has words with his players in a time out huddle in the second half against Colorado in their Pac-12 opener at McKale Center, Thursday, January 3, 2013.
The Arizona Wildcats remained undefeated tonight by a margin that can’t possibly get any slimmer.
This can't possibly go on, can it? The Arizona Wildcats remained undefeated Thursday by the slimmest of margins once again, after a potential game-winning three-pointer by Colorado's Sabatino Chen was ruled to have been taken a split-second after the regulation clock expired.
Slim and None left their seats, headed up the McKale Center ramp and into the night long before referee Verne Harris spread his palms out flat…