Arizona’s Jaden Bradley hit a fall-away jumper at the buzzer, sending second-ranked Arizona to an 82-80 victory over No. 7 Iowa State in the Big 12 Tournament semifinals Friday night. Bradley's bucket answered a tying 3-pointer by Iowa State guard Tamin Lipsey with 15.2 seconds left. The top-seeded Wildcats will play No. 14 Kansas or fifth-ranked Houston for the title. They lost to the Cougars in the championship game last season. Anthony Dell'Orso hit six 3-pointers and scored 26 points for Arizona, while Ivan Kharchenkov had 17 points. Milan Momcilovic hit eight 3s and scored 28 points for the Cyclones.