Iowa State gave up a second half lead but made some big plays in overtime to take down Villanova 81-79 in the first round of the Phil Knight Invitational in Portland on Thanksgiving Day.

Gabe Kalscheur hit five three-pointers on the day, including a big one in the overtime session to lead the Cyclone offense with a game-high 23 points. Caleb Grill hit a three to start the overtime session and Osun Osunniyi had a big basket and block in back-to-back possessions to help the cause.

Villanova had a chance to tie or take the lead at the end of overtime but ISU freshman guard Tamin Lipsey stepped in a passing lane and got a big steal and followed with two free throws to help seal the win.

ISU improved to 4-0 on the season and advance to the semifinals to face top-ranked North Carolina on Friday at 2:30 p.m. on ESPN.