While one 31-year-old tennis legend from Switzerland is struggling on the men’s tour, another on the women’s circuit is enjoying one of the best periods in her career. Serena Williams today captured her second French Open title and 16th overall, and in doing so became just the fourth woman in the Open Era to hold all four Majors at least twice.

Serena joined such greats as Steffi Graf, Martina Navratilova and Chris Evert among those with multiple titles at all four Slams, and she says she’s not done yet.

“I’m just trying to go up and up,” Serena said after a 64, 64 win over Maria Sharapova. “I think it’s really special. I feel like I definitely want to continue my journey. If it means I stop at 16 or if it means I have more, I definitely want to continue my journey to get a few more.”

Serena’s won three of the last four Slams and with Wimbledon upcoming, it’s hard to believe anyone will stop her and put to end to a win streak that now stands at 31.

“I really enjoy every moment that I’m out there,” she said. “I always said that I felt like I have never played my best tennis. I have said that for years, that I feel like I can always do better and play better and I have always wanted to reach that level.”

A year ago Serena was near bottom when she was upset in the first round by Virginie Razzano in the first round. Now, after joining with new coach Patrick Mouratoglou in May 2012, she’s by far the best player in women’s tennis.

“I think I was in great form last year,” she said. “It just didn’t come together in the first round here. But definitely I think, you know, everything I guess it all helps working with Mouratoglou and him being French and all that other jazz.”

Serena is now just two Grand Slam win from matching legends Navratilova and Evert. And only one from equaling the man from Switzerland.