Tristan da Silva scored 20 points and Colorado won its first NCAA Tournament game in three years, wrapping up the First Four with a sloppy 60-53 win over Boise State.
Washington athletics department spokesman Jeff Bechtold said Dannen had informed the school that he was stepping down, though he could not confirm Dannen was taking the Nebraska job.
The Chicago Bulls clinched a thrilling 110-107 victory over the Portland Trail Blazers, led by DeMar DeRozan's 28 points and a game-winning assist to Nikola Vucevic.