Sixth seed Venus Williams crashed out of Australian Open losing in the second round to Spain's Carla Suarez Navarro 2-6, 6-3, 7-5 in the upset of the tournament so far. Her sister, Serena, and world number one men's player, Rafael Nadal, made it to the third round in contrasting fashion.
The loss to the world number 46 Venus continued the seven-time Grand Slam champion's jinx at the season-opening Grand Slam, which she has failed to win in 10 attempts.
She looked in control early in the match but could not overcome the 20-year-old Navarro, who was making her Australian Open debut, squandering match point in the third set.
Serena passes tough test
Serena too almost failed her second-round test. She gave herself a "D-minus at best" for 6-3, 7-5 win over Argentina's Gisela Dulko, who is ranked 45th and is primarily known as a defensive specialist but matched the American shot for shot.
Rafael Nadal, however, got top marks for his second straight match, a 6-2, 6-3, 6-2 win over Croatia's Roko Karanusic. The top-ranked Spaniard has dropped only 11 games in six sets and next faces German veteran Tommy Haas.
Olympic champion Elena Dementieva improved her 2009 winning streak to 12 matches with 6-4, 6-1 win over Iveta Benesova. Amelie Mauresmo rallied for a 4-6, 6-3, 6-2 win over Britain's Elena Baltacha.