Mailbag: Tennis Is Aging; Has Grunting Gone Too Far?

I’m on vacation this week so a petit-sized bag. Quick note: This week’s podcast will feature Kelsey Anderson—Kevin’s wife—a week after an unforgettable Wimbledon.

Why are player like Roger Federer, Rafael Nadal and Novak Djokovic so successful in there 30's, yet greats like Peter Sampras & Andre Agassi tailed off significantly once turning the big 3-0? And why are the young guys not breaking through like Boris Becker and Nadal did as teenagers?

—@dezsod

• Writing this on the day Roger Federer withdraws from the Rogers Cup, this is as good a time as any to address the aging of the field. We joke about this topic. Remember when the cut-off for the Legends tour was age 35? Remember when players…