Freshman Shabazz Muhammad scored 12 of his 16 points in the second half, Travis Wear hit a jumper with 11 seconds left, and No. 21 UCLA rallied from a 15-point deficit to beat Arizona State 80-75 in the quarterfinals of the Pac-12 tournament in Las Vegas.

Muhammad scored 10 points during a 17-4 second-half run.

Jahii Carson had 21 points, seven assists and six rebounds for Arizona State (21-12).

The Bruins (24-8) play No. 18 Arizona on Friday.

Arizona 79, Colorado 69: Nick Johnson had 18 points and hit a contested shot with 34 seconds left, helping the No. 18 Wildcats (25-6) beat the Buffaloes (21-11) in the Pac-12 quarterfinals.

Arizona led by 14 in the second half but had trouble shaking pesky Colorado.

Louisville 74, Villanova 55: Russ Smith had 28 points in a bittersweet homecoming, leading the No. 4 Cardinals (27-5) into the Big East semifinals with a rout of the Wildcats (20-13) only hours after the death of his high school coach.

Jack Curran coached for 55 years at the Archbishop Molloy High-New York. He was 82.

Georgetown 62, Cincinnati 43: Otto Porter Jr. scored 18 points and the fifth-ranked Hoyas (25-5) advanced to the Big East semifinals by pulling away from the Bearcats (22-11) in the second half.

Michigan 83, Penn State 66: Trey Burke had 21 points to lead the No. 6 Wolverines (26-6) over the Nittany Lions (10-21) in the first round of the Big Ten tournament in Chicago, avenging a stunning regular-season loss to Penn State.

Kansas 91, Texas Tech 63: Ben McLemore had 24 points to lead the No. 7 Jayhawks (27-5) to a rout of the Red Raiders (11-20) in the Big 12 quarterfinals in Kansas City, Mo.

Kansas State 66, Texas 49: Rodney McGruder scored 24 points and sparked an 11-0 run in the second half, lifting the No. 11 Wildcats (26-6) past the Longhorns (16-17) in the Big 12 quarterfinals.

Notre Dame 73, Marquette 65: Pat Connaughton scored 18 points on six 3-pointers, and the No. 24 Irish (25-8) upset the No. 12 Golden Eagles (22-8) in a Big East quarterfinal.

Oklahoma State 74, Baylor 72: Phil Forte hit two free throws with 2.9 seconds left and the No. 14 Cowboys (24-7) survived after blowing a 20-point lead to beat the Bears (18-14) at the Big 12 tournament.

Syracuse 62, Pittsburgh 59: James Southerland had 20 points, including 6 for 6 on 3-pointers, and the No. 19 Orange (25-8) held off the No. 17 Panthers (24-8) in the Big East tournament.

Memphis 81, Tulane 68: Chris Crawford had 24 points, and the No. 20 Tigers (28-4) beat the Green Wave (19-14) in a Conference USA quarterfinal in Tulsa, Okla.