Big second-half performances from reserves Aday Mara, Sebastian Mack and William Kyle III helped host UCLA hold off No. 18 Wisconsin 85-83 on Tuesday in Los Angeles.Mack and Mara each scored 15 points after intermission, part of 19 points for Mack and a career-high 22 for Mara. Halting Wisconsin’s seven-game winning streak, UCLA (13-6, 4-4 Big Ten Conference) needed all those points in a tight clash that saw three Bruins starters limited with foul trouble.Tyler Bilodeau and Kobe Johnson fouled out within 33 seconds of each other late in the contest. Bilodeau had 16 points when he was disqualified, but Johnson finished with just three.Eric Dailey Jr., who had a career-best 23 points in UCLA’s rout of Iowa on Friday, was limited to four points in 22 minutes due to fouls.Mack and Mara each picked up the slack, scoring from the floor on 6-of-12 and 7-of-7 shooting, respectively, and at the free-throw line. Mack shot 7-of-8 and Mara went 8-of-11.The last of Mack’s made foul shots came with 30 seconds remaining to give the Bruins an 82-80 lead. Wisconsin (15-4, 5-3) turned to John Blackwell on its ensuing possession, but Kyle came up with a critical blocked shot.