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No. 1 seed John Isner hammered 26 aces en route to a 7-6 7-6 victory over Gilles Muller in the first round of the
Memphis Open.
The 26-year-old Isner won 48 of 50 first-serve points as he chases his first indoors title.
He next faces Donald Young who advanced to the second round with a three set win over Grigor Dimitrov.
Ryan Sweeting beat American countryman James Blake 6-0, 6-2 in just 45 minutes and wild card Sam
Querrey rallied to defeat Alejandro Falla in three sets.
