Sam Groth has blasted 20 aces in a comprehensive win over Feliciano Lopez to advance to the quarter-finals of the ATP’s Washington Open.
The Australian was typically powerful on serve in a 6-3 6-4 victory over the seventh-seeded Spaniard on Thursday at the hardcourt tournament.
Groth will next face second seed Kei Nishikori, who beat Argentina’s Leonardo Mayer 6-4 6-4.
