Washington: US second seed John Isner blasted 26 aces Wednesday in rallying to defeat Japan's Yoshihito Nishioka Four-6, 6-Three, 6-Four and advance to the ATP Memphis Open quarter-finals.
Isner took one hour and 49 minutes to guide a Friday last-eight date with compatriot Donald Younger, who superior with a 7-6 (7/Three), 6-Three conquer American teen Reilly Opelka within the indoor hardcourt occasion.
Bosnian Damir Dzumhur upset Belgian seventh seed Steve Darcis 7-6 (7/2), 6-Four in one other second-round match. He’ll face American Ryan Harrison — who eradicated US third seed Sam Querrey 6-Three, 6-1 — in one other Friday quarter-final.
In first-round matchups, Georgia's Nikoloz Basilashvili downed Australia's Jordan Thompson 6-Three, 6-Zero, and Kazakhstan's Mikhail Kukushkin ousted German fortunate loser Benjamin Becker 6-Three, 6-Four.
Kukushkin will subsequent face Barbados qualifier Darian King whereas Basilashvili meets Croatian high seed Ivo Karlovic on Thursday.