Yevgeny Kafelnikov and Venus Williams had run-ins with
officialdom and were forced to dig deep for victory while seeds Franco Squillari and Amy Frazier tumbled out at the Australian Open.
Martina Hingis continued her march to a fourth Open title with a 40 minute 6-1, 6-0 demolition of Belgian Els Callens and former boyfriend Magnus Norman took a leaf out of her book, downing Frenchman Fabrice Santoro in straight sets.
Lleyton Hewitt pumped himself up after his five-set first round marathon to beat a hamstring injury and Germany's Tommy Haas 7-5, 7-6 (7/5), 6-4.
Mary Pierce ousted Argentina's Mariana Diaz-Oliva 6-2 6-2 while South African Amanda Coetzer also progressed beating Croat Silvija Talaja 6-1, 6-3 for a third round match-up with Germany's Marlene Weingartne.
Men through include Sebastien Grosjean (16), Arnaud Clement (15), Wayne Ferreira (10), Swiss star Roger Federer and former finalist Carlos Moya.
AFP