Let's make this birthday one to remember.

42 years old (Born on May 09, 1983)

Happy Birthday, Gilles Muller! Luxembourg's tennis courts still whisper your name—mostly because they're wondering if anyone else will ever match your legendary left-handed serve. Your epic Wimbledon quarterfinal run and unforgettable victory over Rafael Nadal at the 2017 Wimbledon Championships remain etched in history as proof that even tiny countries can produce giant killers.

As you celebrate another spin around life's court, remember: age is just a number—but those aces against top-ranked players are forever timeless. May this birthday bring you joy sweeter than winning tie-breakers and laughter louder than fans cheering during your greatest matches. Cheers to Luxembourg’s undisputed tennis king!