In 93rd-ranked Camila Giorgi, Bartoli faces a player who has recent familiarity with this stage of the tournament, having reached the fourth round of Wimbledon last year with a straight-sets upset of Nadia Petrova.
Tsonga made a stirring run to the final of the year's first Grand Slam tournament, the Australian Open, producing attacking tennis of remarkable quality in his straight-sets upset of Rafael Nadal in the semifinals.
That focus was missing from Gulbis last year at Wimbledon, when after a straight-sets upset of No. 6 Tomas Berdych in the first round, he lost in the second round to the qualifier Jerzy Janowicz, a missed opportunity he now rues.
After making headlines with her stunning straight-sets upset of No. 5 seed Petra Kvitova in the first round, Alexandra Dulgheru bowed out of the tournament with a whimper Wednesday, winning only three games in her 6-3, 6-0 loss to 68th-ranked Monica Niculescu.
She performed the dance after her three-set upset of Nadia Petrova in the first round.
Nishikori's five-set upset of Tsonga, seeded sixth, established him as a potent competitor.
The four-set upset gave the 20th-seeded Costa, 26, his first major championship.
He began with a five-set upset of the 33-year-old Radek Stepanek, the 23rd seed.
MELBOURNE, Australia – Kei Nishikori of Japan barged into the quarterfinals of the Australian Open on Monday with a five-set upset victory over Jo-Wilfried Tsonga of France.
Yet another wild-card entry, she belted her way to three early-round victories, among them a straight-set upset of ninth-seeded Petra Kvitová.
