EcoOil-La Salle marked its Spikers’ Turf return in potent fashion, its youth brigade overpowering the veteran VNS side for a straight-set 25-23, 25-20, 25-20 victory at the start of the Spikers’ Turf Invitational at the Paco Arena in Manila on Saturday. The Green Oilers battled the Griffins power-for-power and dig-for-dig at the start of each