Twice trailing on Saturday — including an original deficit of four runs — UCLA kept on plugging in a winners bracket matchup against Virginia Tech in the Los Angeles Regional. And the Bruins came up clutch when it mattered most, walking off with a 7-6 win to advance to the regional finals. UCLA entered the bottom of the 7th inning trailing, 6-5, after the Hokies plated a go-ahead run in the top of the frame. It was almost two runs when a play at the plate was originally ruled obstruction, but after review the runner was out. Then, after a Jordan Woolery RBI triple to tie the game at 6-6, Savan…