Let's make this birthday one to remember.

39 years old (Born on February 10, 1986)

Happy Birthday, Viktor Troicki! From turning pro in 2003 to climbing all the way up to World No.12 on June 6, 2011—you've served us plenty of unforgettable moments. Your epic Davis Cup victory for Serbia in 2010 still makes fans smile wider than your trademark grin after a winning shot.

Whether it's your powerful serves or those intense baseline rallies that kept opponents guessing (and occasionally frustrated), you've always entertained and inspired tennis lovers worldwide.

Here's wishing you another year filled with aces both on and off the court—may it be as legendary as your best matches!