Germany's Tommy Haas became the first 35-year-old since 2007 to reach the French Open's third round, beating 20-year-old American qualifier Jack Sock 7-6 (3), 6-2, 7-5 Friday.
Jonas Bjorkman of Sweden also was 35 when he made it to the fourth round at Roland Garros six years ago.
The 12th-seeded Haas, the oldest man left in the draw this year, has been a Grand Slam semifinalist four times but never has been past the fourth round in 11 previous appearances at the French Open.
Haas won his 14th career title in May at Munich, Germany, on clay.
Sock double-faulted to get broken in the next-to-last game of Friday's match.