SPRINGFIELD, Massachusetts (Ticker) -- Bonell Colas picked the right time for his only basket.
Colas converted a layup with 7.3 seconds remaining as No. 8 Florida posted a 78-77 victory over third-ranked Arizona in the MassMutual Classic.
It looked like the Wildcats (1-1) were on their way to a win after Salim Stoudamire's jumper made it 77-73 with 2:38 remaining.
But Anthony Roberson, who missed the season opener after completing a three-game suspension, split two free throws and made a layup with 2:01 to play, pulling the Gators within 77-76.
Stoudamire, an 86 percent free-throw shooter last season, missed the front end of a 1-and-1 with 23.8 seconds to go. Following a timeout, the Wildcats got caught defensively as Colas, who battled foul trouble the entire night, cut to the basket and made a layup off Christian Drejer's inbounds pass to put Florida (2-0) ahead for good.
"We were fortunate to win the game," Florida coach Billy Donovan said. "It could have gone either way. We were fortunate to make plays at the end."
Stoudamire drove the length of the court but missed a pull-up jumper and Andre Iguodala could not convert the tip as time expired.
The Wildcats failed to score on their final four possessions of the contest.
Matt Walsh scored 18 of his 27 points in the second half for the Gators, who trailed by as many as six over the final 20 minutes. Walsh made 10-of-18 shots, including 5-of-8 from 3-point range.
A 3-pointer by Roberson, who scored 15 points, gave the Gators their biggest lead at 46-38 with 17:04 remaining.
But the Wildcats used a 12-3 surge, capped by freshman Chris Rodgers' 3-pointer with 12:48 to go, for a 50-49 advantage. The lead grew to six points with just under 10 minutes to play before the Gators rallied.
Channing Frye had 15 points, 13 rebounds and five blocks to lead Arizona, which played most of the contest without fellow big man Isaiah Fox, who was limited to six minutes due to a knee injury.
Despite Fox's absence, the Wildcats had a 54-43 rebounding advantage.
Freshman Mustafa Shakur added 13 points on 6-of-9 shooting for the Wildcats before fouling out late in the second half. Stoudamire managed 11 points but was an abysmal 5-of-19 from the floor.