MANILA, Philippines — Barangay Ginebra unleashed a backbreaking fourth-quarter assault to oust San Miguel Beer, 110-94, in their sudden-death PBA Season 50 Governors’ Cup quarterfinal duel and secure the last semifinal spot on Tuesday at the Ynares Center in Antipolo. The Gin Kings shifted into another gear in the final period, outscoring the Beermen, 34-14, to clinch the series, 3-2, and avert a stunning playoff collapse. Ginebra raced to a 2-0 series lead but watched San Miguel Beer bounce back with victories in Games 3 and 4 to force a winner-take-all showdown. With the victory, Ginebra arranged a semifinal showdown with defending champion TNT, led by import Rondae Hollis-Jefferson