UCLA looks to beat Arizona for the third time this season when the teams meet Friday in the semifinals of the Pac-12 tournament in Las Vegas. The Bruins advanced with an 80-75 victory over Arizona State on Thursday, while Arizona held off Colorado 79-69. The top-seeded Bruins have won six of their last seven games and appear to be peaking at the right time behind the play of freshman wing Shabazz Muhammad, who scored 12 of his 16 points in the second half against Arizona State.The fourth-seeded Wildcats closed the regular season by losing two of three, but used a balanced offensive attack to get past Colorado. Arizona's reserves scored a combined 25 points, and sophomore guard Nick Johnson had a team-high 18 points. Point guard Mark Lyons missed seven of his nine shots from beyond the arc and finished with 14 points, and is shooting 25.5 percent (12-of-47) over his last four games.TV: 9 p.m. ET, Pac-12 NetworkABOUT NO. 25 UCLA (24-8): Muhammad receives most of the media attention, but Arizona coach Sean Miller said senior point guard Larry Drew II is the key to the Bruins' success. Drew had 20 points, four assists and two turnovers in 34 minutes against Arizona State, and has averaged nine assists in the first two games against the Wildcats. "Larry Drew has been a huge reason why we've lost both games," Miller told reporters. "He has scored and he's also gotten his teammates easy baskets. We have to be able to contain him."ABOUT NO. 18 ARIZONA (25-6): While Lyons has fallen into a shooting slump, Johnson has averaged 15 points over the last three games. Reserve guard Jordin Mayes had eight points against Colorado, and has made five of his last eight shots from 3-point range over the last four games. Arizona has struggled offensively in its two losses to UCLA, shooting 40.9 percent from the field and averaging 15 turnovers. The Wildcats need a strong game from senior forward Solomon Hill, who was limited to seven points and four boards in a 74-69 loss to the Bruins on March 2.TIP-INS1. The winner faces Utah or Oregon in Saturday's title game.2. The Wildcats are 23-0 when holding their opponents to fewer than 70 points.3. UCLA is looking to avenge a 66-58 loss to Arizona in last year's Pac-12 quarterfinals.PREDICTION: UCLA 77, Arizona 72