Juan Martin del Potro produced a vintage display of controlled, power tennis on Wednesday to reach the Shanghai Rolex Masters quarter-finals.
The popular Argentinean, No. 16 seed this week, recorded his fourth Top 10 victory of the season by knocking out third-seeded German Alexander Zverev, who struck 22 aces, 3-6, 7-6(5), 6-4 in one hour and 56 minutes. The 29-year-old Argentine is now 4-9 in 2017 against players in the Top 10 of the Emirates ATP Rankings.
Del Potro, who lost to Novak Djokovic...
4 months ago, ATP World Tour