NEW YORK, SEPT. 1 -- Andre Agassi is as controversial as ever. Fined $3,000 for unsportsmanlike conduct, obscenities and spitting during a match against Petr Korda, he still was steamed two days later and today lambasted chair umpire Wayne McEwen.

"The more I thought about it, the more organized my thoughts got," Agassi said after defeating Franco Davin, 7-5, 6-4, 6-0.

"The one thing that escalated the whole incident was the fact that I got a warning when I didn't feel it was justified. I felt like I didn't deserve a warning and I got one.

"In that sense I felt like he {McEwen} was looking for it. He was looking to give me a warning. Watching the tape, I saw him roll his eyes at Korda when they took back the point penalty.

"I just don't need someone in the chair who either has something personal against me or is looking to throw me down however he can.

"I felt things were personal out there on the court from the umpire toward me. I think that's what escalated the whole incident. If we had someone else in the chair, that never would have taken place."

Those remarks brought an immediate response from Grand Slam supervisor Ken Ferrar, who intervened when McEwen assessed a point penalty against Agassi in the Korda match Thursday night.

"So far as I know, McEwen has never called a ball or a line at an Agassi match," he said. "The assertion is unfounded and totally ludicrous."

Ken Flach is in trouble too and was fined $2,700 and defaulted from the men's doubles competition for quitting a first-round mixed doubles match.

He and Patty Fendick, seeded No. 7, were losing to Elise Burgin of Baltimore and partner Laurie Warder, 7-6 (7-5), 6-7 (4-7), 2-5, when Flach was cited twice for abuse of the ball; he walked off. He was fined $700 for abusing the ball, $1,000 for failure to complete a match, and $1,000 for defaulting. His default from the men's doubles leaves partner Robert Seguso in the lurch. Flach and Seguso were seeded 15th and were in the third round.Favorite Underdog

John McEnroe's straght-set victory over 10th-seeded Andrei Chesnokov Friday night -- he made the round of 16 -- drew the largest crowd reaction of the tournament. It was an indication of just how much of an underdog McEnroe, 31 and unseeded for the first time in 12 years, has become.

After he won the match, 6-3, 7-5, 6-4, recovering from deficits of 0-4 in the second set and 1-3 in the third, the four-time champion raised his arms to roars as if he had won another title. Later, he remarked on the strangeness of it.

"I must be getting old," he said. "People clapping in the round of 32."

He is in the middle of what he calls his last comeback, having fallen from No. 4 last year to No. 20 currently. His game is patchy; for instance he made just 48 percent of his first serves against Chesnokov, but he volleyed as he hadn't in years. It may have been one of his strongest single performances since his last title in 1984, and he clearly savored it.

"I just don't think I'm going to be playing that many more times," he said. "People realize that this is going to be the last opportunity to see me play."Upsets Old Hat

Linda Ferrando, upsetter of third-seeded Monica Seles in the third round, has a precedent. In 1988, she knocked off two seeds, Kathy Rinaldi and Laura Gildemeister, to reach the semifinals at Mahwah. Last year she beat Natalia Zvereva of the Soviet Union in the first round of the U.S. Hardcourts.

Martina Navratilova got confused when she was asked about the Seles-Ferrando match. She referred to Ferrando as Laura "Garrone."

"Oh my gosh," Navratilova said. "I get all the Italians confused. I can't believe I did that."