Arizona forward Rondae Hollis-Jefferson, right, drives against Wisconsin forward Nigel Hayes in the first half of a college basketball regional final in the NCAA Tournament, Saturday, March 28, 2015, in Los Angeles. (AP Photo/Jae C. Hong)

Final Four berths at stake

In Los Angeles, Wisconsin will try to grab the West Regional title when the top-seeded Badgers tip off against No. 2 seed Arizona.