No. 4 Arizona still unbeaten, but walking a fine line with so many close calls

Arizona's Soloman Hill, (44) drives against the pressing defense of Utah's Jarred DuBois, left, during the first half of an NCAA college basketball game at McKale Center in Tucson, Ariz., Jan. 5, 2013. (AP Photo/John Miller) (The Associated Press)

TUCSON, Ariz. – Arizona has survived some close calls and found a way to remain undefeated.

The fourth-ranked Wildcats know they can't keep walking this kind of tightrope if they're going to stay that way.

At 14-0, Arizona is off to its best start since winning the first 16 games of the 1931-32 season.

The Wildcats got to this point by pulling out close wins over a pair of ranked teams, Florida and San Diego State, and two conference opponents last week.

Arizona beat Colorado in overtime when a potential winning 3-pointer by the Buffaloes was waved off and outlasted Utah when a tying 3-pointer danced around the rim like a pachinko ball.

The Wildcats head to the Northwest to face Oregon and Oregon State this week.