Chang Wins; All Three Top Seeds Advance in Australia

SYDNEY, Australia — Stefan Edberg, Boris Becker and Ivan Lendl, the top three seeds, advanced to the third round of the Australian Indoor tennis championship today.

Edberg, the Wimbledon champion and top-ranked player in the world rankings, beat fellow Swede Niclas Kroon 6-3, 6-2.

Becker pulled his game together after a second set slump and powered to a 6-2, 7-5 victory over Mats Wilander.

Lendl also rallied from a second-set slump to defeat Finnish teen-ager Aki Rahunen 6-0, 3-6, 6-0.

Sixth-seeded Michael Chang marked his Australian debut with a 4-6, 6-1, 6-4 victory over fellow American Todd Witsken in a 2-hour, 5-minute baseline battle that ended at 1 a.m local time.

Ninth-seeded David Wheaton and the unseeded trio of Todd Woodbridge, Paul Haarhuis and Patrick Kuhnen also advanced to the round of 16.

Wheaton beat qualifier Sandon Stolle 4-6, 6-0, 6-2 and Woodbridge upset fourth-seeded Brad Gilbert 7-6 (9-7), 6-3 after trailing 6-0 in the first-set tiebreaker.

Gilbert, who won the Queensland Open last week, smashed his racket in anger after the loss.

Kuhnen defeated seventh-seeded Richard Fromberg 7-6 (7-4), 6-2 and Haarhuis eliminated 12th-seeded Derrick Rostagno 7-6 (7-3), 6-4.

At Athens, Top-seeded Thomas Muster of Austria battled to a 7-6 (7-1), 6-3 victory over Canada’s Martin Wostenholm today in his opening match at the Athens International.

Second seeded Emilio Sanchez of Spain was beaten by countryman Francisco Roig 6-2, 7-6 (8-6).

Guillermo Perez-Roldan of Argentina, the No. 3 seed, was on the verge of joining Sanchez on the sidelines, but rallied to beat Carlos Costa of Spain 7-6 (7-4), 6-7 (7-9), 6-1.