The resilient Krajinovic beat second-seeded David Goffin of Belgium 6-4, 6-4 after withstanding 11 aces, saving all four break points, and breaking Goffin's serve twice. No. 6 Jeremy Chardy and unseeded wild-card entry Jo-Wilfried Tsonga also won their second-round matches, setting up an all-French quarterfinal.
Chardy had nine aces in a 6-3, 7-5 win against inexperienced countryman Antoine Hoang, who came through the qualifying rounds. Tsonga had 11 as he won 6-2, 7-6 (3) against fourth-seeded Gilles Simon, beating him for the ninth time in their 12 meetings.
The 33-year-old Tsonga's ranking has plummeted to 210 following surgery on his left knee in April. He lost to eventual champion Novak Djokovic in the second round of the Australian Open last month.
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