TUCSON, Arizona (Ticker) -- Luke Walton scored 16 points and grabbed seven rebounds before aggravating an ankle injury as fourth-ranked Arizona defeated Boston University, 85-71, in the championship game of the Fiesta Bowl Classic.
Walton scored 11 points in the first 4:16 of the second half to extend Arizona's lead to 57-49. But he sprained his right ankle and headed to the locker room with 9:44 left.
Walton has had several problems with the ankle.
"It's a sprain again, but different from the other ones," Arizona coach Lute Olson said. "It was just a case of bad luck, turning and stepping on somebody's foot, and down he went. We won't know until at least (Tuesday) whether he'll be able to play next week, but my feeling is he won't be able to."
Walton had the ankle in ice and was limping noticeably after the game. His injury likely means that Arizona will use its eighth different starting lineup in nine games on Thursday when it opens the Pac-10 season at Oregon. Olson suggested that he would shift small forward Rick Anderson into Walton's spot and freshman Hassan Adams would fill in for Anderson.
Adams scored 17 points on 7-of-9 shooting to lead the Wildcats (7-1) and was named the tournament's Most Valuable Player.
"We've played a couple of games without (Walton) this season," Adams said. "We know it'll be tough. We all have to turn it up. This is a new, more important part of the season. We all need to pick up added responsibilities."
A 3-pointer by Salim Stoudamire with 5:32 to play opened a 79-64 cushion and Boston University got no closer than 10 points thereafter. Stoudamire finished with 12 points and Jason Gardner added 11 for Arizona.
Billy Collins got the Terriers (5-6) off to a quick start, scoring nine points in the first 5:37 of the game as BU took an 11-9 lead. But the Wildcats went to the locker room with a 44-38 advantage.
"I told our guys that I've been coaching for years and I have never been more proud of a team losing a game than this," Terriers coach Dennis Wolff said. "I felt like we competed hard but lost the game in the last five or six minutes."
Collins ended up with 13 points and eight rebounds.
Arizona has won 35 of 36 games in the tournament's 18-year history, with the only loss coming against Mississippi State in 2000.