Michael Chang rallied from a four-game deficit in the last set to reach the final of the Wembley, England indoor tournament. He defeated Christian Bergstrom, 6-3, 3-6, 7-6 (7-2), yesterday. Jakob Hlasek, the seventh seed, won, 7-6 (7-4), 6-2, over Diego Nargiso, who pulled a stomach muscle in the second set.

Chang fell behind by 4-0 in the final set and with Bergstrom leading 5-4, 30-0, was two points from elimination before rallying to force the tiebreaker. "I thought I was going to lose. I thought I was going to get on the plane tomorrow. But sometimes things turn around," Chang said.

The normally mild-mannered Bergstrom was upset by several overrules by umpire Ted Watts and stormed into the tunnel leading to the dressing rooms after the match.

Earlier, it was announced Pete Sampras probably will play in the ATP World Championships, the $2 million men's season finale, after tests revealed no shin fracture as had been feared when he withdrew from Wembley Thursday. But Boris Becker experienced discomfort while practicing and remains questionable.

Rome:

In an exhibition, No. 3 Ivan Lendl edged No. 1 Stefan Edberg, 5-7, 7-6 (7-3), 7-6 (7-3), in 2 1/2 hours. In the consolation, John McEnroe beat Andre Agassi, 6-3, 6-1.

Kremlin Cup:

Tim Mayotte and Andrei Cherkasov won semifinals in Moscow, in the first men's pro tournament in the Soviet Union. Mayotte beat Petr Korda, 7-6 (7-2), 3-6, 6-3. Cherkasov, No. 8 and the only seeded player in the semifinals, defeated Udo Riglewski, 6-1, 7-6 (7-4).

Citibank Open:

Mats Wilander beat Marcelo Filippini 6-1, 6-2, to win the title in Itaparica, Brazil. Wilander used lobs and baseline strokes to triumph in 84 minutes.

New England Virginia Slims:

Steffi Graf beat Manuela Maleeva-Fragniere, 7-6 (7-3), 6-7 (5-7), 6-3, and third-seeded Gabriela Sabatini defeated second-seeded Mary Joe Fernandez, 6-2, 6-4, to advance to the final in Worcester, Mass.

Graf, whose serves were timed at up to 97 mph, broke to take a 2-0 lead in the third set and closed out her 14th consecutive victory over Maleeva-Fragniere with relative ease.

Jell-O Classic:

Fourth-seeded Leila Meskhi upset top-seeded and two-time champion Katerina Maleeva in a ground stroke battle, 6-2, 6-4, to reach the final in Indianapolis. She'll play No. 2 seed Conchita Martinez, who beat Natalia Medvedeva, 7-5, 6-0, and has won two of her last three tournaments.