Peter Lundren upset sixth-seeded Michael Chang 6-2, 6-4 to advance to the quarterfinals of the Australian Indoor.

Top-seeded Stefan Edberg, second-seeded Boris Becker and third-seeded Ivan Lendl also moved into the quarterfinals. Edberg beat Mark Kratzmann 6-2, 7-6 (7-4); Becker defeated Kelly Evernden 6-4, 6-3; and Lendl defeated Scott Davis 7-6 (7-2), 4-6, 6-2.