NEWPORT, R.I., July 6 (UPI) -- Top-seeded John Isner punched his ticket to the Hall of Fame Tennis Championship quarterfinals Wednesday with a victory over Frenchman Arnaud Clement.
Isner, a towering 6-foot-9, bested the diminutive 5-foot-8 Clement 7-6 (8-6), 6-4 on the grass courts at the International Tennis Hall of Fame in Newport, R.I.
The American benefited from nine double faults by Clement, a former Australian Open runner-up.
Isner now goes on to face fifth-seeded fellow American Alex Bogomolov Jr., who rallied to down Belgian Ruben Bemelmans 2-6, 6-0, 6-1.
Also Wednesday, second-seeded Bulgarian Grigor Dimitrov fell in an upset to 18-year-old American wild card Denis Kudla, 6-1, 6-4, and No. 6 Olivier Rochus of Belgium -- last year's Newport runner-up -- bested Nicolas Mahut of France 6-4, 7-6 (7-3).
No. 8 Tobias Kamke of Germany had little trouble with American Donald Young 7-6 (7-3), 6-4 elsewhere at Newport.
