Let's make this birthday one to remember.

47 years old (Born on April 29, 1978)

Happy Birthday, Bob Bryan! You're the only guy who can say his greatest victories came from always having his brother by his side. With Mike, you've smashed records, won countless Grand Slams, and made doubles tennis look easier than tying shoelaces. Seriously—do you two communicate telepathically or something?

From Olympic gold to Davis Cup glory and holding the record for most doubles titles ever—your trophy cabinet must be bigger than your garage! Here's hoping your birthday is as legendary as your chest bumps on court. Keep serving up aces in life; after all, you're still unbeatable at being awesome!