COMMACK, N.Y. -- Paul-Henri Mathieu, the last of the 48 players to get into the main draw, stunned Pete Sampras 6-3, 6-7 (9), 6-4 in a second-round match at the TD Waterhouse Cup on Tuesday night.

	Pete Sampras couldn't get past Paul-Henri Mathieu, who barely made it into the tournament.

The 20-year-old, a pro since 1999, originally was scheduled to play in the qualifier, but was moved up when Thomas Enqvist withdrew because of an upper respiratory infection.

Earlier this year, Mathieu reached the fourth round of the French Open in his native Paris, losing to Andre Agassi after taking a 2-0 lead.

''This is the biggest win of my career,'' he said. ''It's a great feeling. I had the same feeling when I played against Agassi. You see them on television all the time, but I tried not to be in awe of them. I played my own game.''

Sampras has not won a tournament since Wimbledon in 2000, the last of record 13 Grand Slam titles. The non-winning streak has reached 32 consecutive tournaments and next up is the U.S. Open, which starts Aug. 26.

Sampras has won the Open four times and was the runner-up the past two years.

''People have to realize who I am when I get to the U.S. Open next week,'' Sampras said. ''I sure won't be the man to beat, Lleyton Hewitt has taken care of that, but when it comes to that tournament, I'm there.''

Sampras blew three break points in the seventh game of the third set.

''I lost the first set before I knew it and the crowd helped me get through the second,'' he said. ''I started slow but he returned great winners and got into a zone. I never saw him play before so I didn't know what to expect. He's a great shotmaker and has talent.''

Asked if he saw a decline in the play of Sampras, Mathieu politely responded: ''He still has his serve.''

In a first-round match, Vince Spadea, battling to get back to the No. 20 ranking he held in 1999, beat Magnus Norman 6-4, 6-3.

Norman, 26, had hip surgery exactly one year ago. The winner of this tournament in 1999 and 2000, he turned down a wild card into the main draw this year, preferring to play in the qualifier.

Norman is ranked No. 216 in the ATP Tour rankings, a far cry from where he was after being the winningest player in 1999 and 2000 with 10 titles.

''It's been tougher to come back than I thought it would be,'' he said. ''I need all the matches I can get leading into the U.S. Open and it was a great decision to play in the qualifier because I got four good matches.

''My goal for this year is to break into the top 100. It's a strange feeling to be ranked so low. I don't even find myself on the first page. For three years, I only needed to look at the first 10 guys to see my name.''

Spadea, currently ranked 70th, knows what Norman is going through.

''Magnus is ranked somewhere about where I was 18 months ago and I know that feeling,'' he said. ''He'll get back there. It's just a matter of him tightening up on execution on the big points.

''In due time I will show that I've been working hard and my game will get to where it was in '99. I've made good strides in the past eight to 10 months.''

In another first-round match, Mardy Fish, fresh off his first Challenger championship at the Bronx Classic last Sunday, outlasted Olivier Bochus 6-4, 1-6, 6-3.

Fish, 20, had 14 aces, eight in the first set, to just one for Rochus.

Younes ElAynaoui, ranked No. 17 as a result of three titles this year, slowed Richard Krajicek's comeback, 5-7, 7-6 (5), 6-4.

The 30-year-old Krajicek, the 1996 Wimbledon champion who has 17 career victories, missed all last year recovering from surgery on his right elbow.

Alex Corretja, a two-time French Open finalist who won in Switzerland and Austria this summer, overtook Adrian Voinea 3-6, 7-6 (5), 6-4.

Voinea was a last-minute entry, replacing Wayne Arthurs who withdrew because of a stomach virus.