Playing her first tournament since Wimbledon might have put pressure on the No.3 seed, Muguruza has dropped a combined six games in her first two matches, wrapping up her win over Hibino in just under an hour.
Hibino had kicked off her Olympic campaign by knocking out Irina-Camelia Begu, but had no answers for Muguruza's mix of pace and precision, dropping serve five times in the straight set decision.
? ITF Olympic Tennis (@OlympicsTennis) August 8, 2016
More to come...