Andy Roddick is a lucky guy ... just check out his wife's body!
The gorgeous Brooklyn Decker showed off her fit physique over the weekend in Australia -- where she flaunted her curves in a sexy bikini.
The 24-year-old made a name for herself posing in the Sports Illustrated swimsuit issue and for Victoria's Secret Swim line, and it's pretty clear why.
Decker is in Australia as part of her promotional tour for "Battleship," which co-stars Taylor Kitsch, Alexander Skarsgard and Rihanna.
Check out more bikini shots above!