WASHINGTON (AP) - Two-time Grand Slam finalist Mark Philippoussis was upset 7-5, 6-4 by Luis Horna on Tuesday night in the in the first round of the Legg Mason Tennis Classic.
In the day's featured match, top-seeded Andy Roddick defeated Giovanni Lapentti 6-3, 6-4 in a second-round match at the William H.G. Fitzgerald Tennis Center.
Philippoussis, a wild card entry who was runner-up at the 1998 U.S. Open and at Wimbledon in 2003, was the biggest name to fall in the tournament's opening round.
Roddick won his first match since losing in the quarterfinals of the RCA Championships to Robby Ginepri two weeks ago. He won 86 percent of his first-serve points. With the win, the 2001 tournament champion advanced to face the winner of Wednesday's match between unseeded Brian Baker and No. 14 Juan Ignacio Chela.
It was Roddick's first time facing Lapentti, and the 2003 U.S. Open champ said his opponent's power took him by surprise.
``I wasn't expecting him to serve that big. He was up in the upper 130s and served a very high percentage,'' Roddick said. ``There was definitely a feeling-out process in the beginning of the match.''
Lapentti's fastest serve was over 140 mph, and he had a 74 percent first-serve percentage. He finished with four aces, and did not double-fault. Roddick, meanwhile, topped out at 149 mph and had eight aces.
``I have only played four matches (since losing in the Wimbledon finals to Roger Federer) and only in three of them did I feel like I was prepared,'' Roddick said. ``But I feel like the momentum is swinging in the right direction.''
In other second-round matches Tuesday night, Ivo Karlovic defeated Max Mirnyi 4-6, 6-3, 6-4 and Jan Hernych beat Sebastien De Chaunac 7-6 (7), 6-1. Third-seeded Tim Henman, the 2003 Legg Mason champion, was to face Wesley Moodie of South Africa in Tuesday's final second-round match.
In first-round play Tuesday, Ginepri beat training partner Kevin Kim 6-2, 6-3.
Ginepri, who will face 12th-seeded Karol Beck in the second round, entered the hard-court tournament as the leader of the U.S. Open Series. In addition to knocking off Roddick in the quarterfinals at Indianapolis, Ginepri reached the quarterfinals at Los Angeles last week.
The former U.S. Davis Cup player wants to continue that momentum in Washington with an eye toward a breakthrough showing at the U.S. Open, which starts Aug. 29.
``I hope that I can do something at the U.S. Open,'' Ginepri said. ``That's what I'm preparing myself for with this summer sequence. And I've had a good run so far. I'm confident, I just need to keep the ball rolling from here.''
In other first-round play, Arnaud Clement defeated Nicholas Lapentti 6-1, 3-6, 6-3; Bobby Reynolds beat Alex Clayton 7-5, 6-4; Nathan Healey swept past Gregory Carraz 6-2, 6-1; Brian Baker beat Ivo Heuberger 6-2, 6-4; and Gilles Muller defeated Davide Sanguinetti 6-3, 6-4.
Ginepri swept past Kim as their coach, Francisco Montana, sat quietly in the stands.
``I didn't even know where he was sitting during the match,'' Ginepri said. ``He just warmed us up, said, 'Good luck' to both of us, and said, 'I'll see you after the match.'
``It's tough playing one of your friends. But you've got to concentrate out there a little harder and get the job done.''