Those are great points, christti and CD. With advances in technology and better nutrition and more knowledge, the early and mid-thirties aren't as old as they used to be.
Jimmy Connors and 39. That's unreal. They must really love the game. I guess they would after having devoted most of their life to it. Even Serena, she is surprising me by playing this long. The women seem to retire quicker. But, I'm glad that Serena has hung around. She's still good.