Freshman Chucky Hepburn hit a 3-pointer with 1.5 seconds left to give No. 10 Wisconsin a 70–67 victory over No. 8 Purdue on Tuesday in Madison, Wis., allowing the Badgers to clinch at least a share of the Big Ten regular-season title. Wisconsin (24–5, 15–4 Big Ten), which swept the two-game series against Purdue for the first time since 2013–14, finishes Sunday at home against last-place Nebraska. Purdue (24–6, 13–6), which also lost to Michigan State 68–65 on Saturday on another late 3-pointer, fell to third, a half-game behind Illinois (20–8, 13–5). Tyler Wahl had 19 points and Davis added 16 points and eight rebounds for Wisconsin, which won its fifth straight and improved to 15–1 in games decided by six points or fewer. Ivey had 22 points and Edey contributed 17 points and nine rebounds for the Boilermakers. No. 2 Arizona 91, No. 16 USC 71 Bennedict Mathurin scored …