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Isner, Hewitt, Mahut advance in Newport

Newport, RI (SportsNetwork.com) - Two-time champion John Isner, two-time runner-up Lleyton Hewitt and reigning titlist Nicolas Mahut notched opening- round victories Tuesday at the Hall of Fame Tennis Championships.

The top-seeded Isner launched 19 aces in getting past qualifier and fellow American Wayne Odesnik, 6-3, 7-6 (8-6), on the grounds of the International Tennis Hall of Fame.

Isner captured back-to-back titles at this event in 2011 and 2012, and is the No. 1 seed in Newport for the third time in four years. He had a 13-match winning streak at this grass-court event snapped by Hewitt in last year's semifinals.

Next up for Isner will be another qualifier in fellow American Austin Krajicek, who defeated compatriot Tim Smyczek, 7-6 (9-7), 6-1, on Day 2.

Meanwhile, the third-seeded Hewitt came from behind to top American Ryan Harrison, 1-6, 7-5, 6-4, and the fourth-seeded Frenchman Mahut popped 11 aces in foiling Argentine Facundo Arguello, 7-6 (7-1), 6-4.

Mahut overcame the former world No. 1 Hewitt in last year's Newport finale, as Hewitt fell for the second straight year in the championship round. Mahut was also the 2007 Newport runner-up to Fabrice Santoro.

Also on Tuesday, seventh-seeded Jack Sock eased past fellow American Alex Kuznetsov, 6-4, 6-3, and eighth-seeded Frenchman Adrian Mannarino handled Taiwan's Jimmy Wang 6-2, 6-4. Additional first-round wins came for Ukrainian Sergiy Stakhovsky, Croatian qualifier Ante Pavic and Aussie qualifier Luke Saville.

This week's champion will claim $81,500.

07/08 19:06:44 ET