Two-time defending champion John Isner advanced to the quarterfinal round of the Hall of Fame Tennis Championships in Newport, R.I., by beating Adrian Mannarino, 6-0, 7-6 (9-7), serving 13 aces in the match that lasted just 59 minutes. In other second-round play, No. 4 seed Lleyton Hewitt, a runner-up last year in Newport, needed just over an hour to defeat wild-card entrant Prakash Amritraj, 6-2, 6-1. Full story for BostonGlobe.com subscribers.
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