When Nebraska meets Oregon State on Wednesday in Honolulu in the championship game of the Diamond Head Classic, it will have a chance to win its first tournament since the San Juan Shootout in 2000.If the Cornhuskers (9-2) pull it off, there’s a good chance Juwan Gary will have something to do with it — on both ends of the floor.The 6-foot-6, sixth-year senior averages 11.7 points per game and is coming off a 21-point outing in Monday night’s 69-55 semifinal win over Hawaii. Gary is also an elite defender whose ability to guard multiple positions has Nebraska playing the best defense in coach Fred Hoiberg’s six seasons.The Cornhuskers, who have allowed an average of 52.0 points per game in victories over Murray State and Hawaii at the tournament, are limiting the opposition to 36.3 percent field-goal shooting.”He can guard anybody one through five,” Hoiberg said of Gary. “He does so many little things for his team and he’s one of the elite offensive rebounders in the country.”Fellow sixth-year senior Brice Williams (19.2 points) is coming off a 32-point outing Monday night for Nebraska, which is on a three-game winning streak.