PARIS, JUNE 7 -- Gabriela Sabatini, seeded fourth for the French Open but a loser in the round of 16 to Jana Novotna, is said to be so dissatisfied with her progress that she may go to Wimbledon without her longtime coach and trainer.

Although Sabatini has not officially parted from coach Angel Gimenez and trainer Omar Carminatti, she apparently is unhappy with her physical and mental conditioning and her fall in the rankings from No. 3 to No. 5. She also has been working with a sports psychologist.

In rankings to be released Monday, 1989 French champion Arantxa Sanchez Vicario will drop to No. 6 from No. 4, so Sabatini can at least console herself with a rise to No. 4. Boorish Becker

Boris Becker has committed two social gaffes, at least by the highly political standards of the tennis world. In the last couple of days the likable defending Wimbledon and U.S. Open champion was a no-show at an international champions dinner at the French Open and he got kicked off the courts of Wimbledon.

Becker was expected Wednesday night at the formal affair. But he was upset in the first round here and promptly left for Britain to prepare for his Wimbledon defense. He sent a four-paragraph fax instead.

The other day while practicing at the All England Club, he was asked to leave because, even though he is a member and thus entitled to play on the grass courts there, his coach, Bob Brett, is not a member. Several courts were not in use, but rules are rules at Wimbledon. Thanks but No Thanks

Monica Seles has been unwilling to explain her decision to leave coach Nick Bollettieri, with whom she had been working since 1986. Bollettieri assisted the 16-year-old Yugoslavian and her family in establishing U.S. residency and helped support them while she was a rising junior player. Bollettieri now says Seles owes him roughly $200,000.

Seles has said her father, Karolj, chiefly has been her coach. But in an interview with Chris Evert here she acknowledged Bollettieri "helped me." Beyond that she would not comment.

"That's past, it's behind me," she said. "It's better not to talk about what's past."

Seles and her family have been talking with Ion Tiriac, who handles Becker, about possibly becoming her manager. Corporate Expansion

The Women's International Tennis Association, long headquartered in Miami but growing faster than its offices, has narrowed the list of potential sites for its new home to two in Florida, the Eagle Trace development in Coral Springs and the Stouffer Vinoy Hotel in St. Petersburg.