Let's make this birthday one to remember.

61 years old (Born on February 05, 1964)

Happy Birthday, Jim! You're officially acing another year—though rumor has it your doubles partner still insists you carried him through all three Grand Slam men's doubles titles. And let's not forget those five mixed-doubles championships; clearly, you've always known how to pick the perfect teammate!

Even though you're retired from professional tennis, we know you're still serving up plenty of laughs and volleying life's challenges with style. May this birthday be filled with as much joy as your trophy cabinet is filled with shiny hardware—and may your backhand stay forever young.

Cheers to a champion on and off the court!