LONDON (AFP) - Defending champion Serena Williams eased past teenager Caroline Garcia on Thursday to reach the Wimbledon third round, where she will face 42-year-old Kimiko Date-Krumm, the oldest woman in the last 32 in the Open era.

Top seed Williams extended her winning streak to 33 matches, just two behind the record set by sister Venus in 2000, with a 6-3, 6-2 win over French teenager Garcia, who she also beat at the French Open.

Williams, 31, chasing a sixth Wimbledon title and 17th Grand Slam, wrapped up victory over the 19-year-old in 67 minutes with 30 winners and nine aces.

Date-Krumm reached the third round, 17 years after her last appearance, with a 6-4, 7-5 win over Romania's Alexandra Cadantu, 19 years the Japanese player's junior.

Despite their many years on tour, Williams and Date-Krumm have never played each other.

"Kimiko is so incredibly fit and inspiring. I have never played her but I watched her when I was super-young," said Williams, after winning her 599th career match.

"Venus has played her, so I will definitely be talking to her about it."