MANILA, Philippines --- National University unleashed a fourth-quarter surge to stun defending champion Ateneo, 77-64, in the UAAP Season 86 men's basketball opener on Saturday at Mall of Asia Arena. The Bulldogs opened the payoff period with a 10-0 run capped by Michael Malonzo's basket inside for a 65-47 lead with 6:49 remaining. Donn Lim's hook shot and Patrick Yu's triple tallied the biggest lead of 20 points, 70-50, with 3:55 left as Ateneo didn't score a field goal for over six minutes until Sean Quitevis stopped the bleeding to trim the deficit to 18. NU never looked back and handed Ateneo's first opening day defeat in five years since the Season 81 opener loss to Ada...Keep on reading: UAAP: NU upsets defending champion Ateneo in opener