Former World No 1 tennis player Andy Roddick and his actress wife Brooklyn Decker are expecting their first baby and the American model, Decker is super excited.

Andy Roddick with wife Brooklyn Decker. Pics/Getty Images
Andy Roddick with wife Brooklyn Decker. Pics/Getty Images 

The 28-year-old said the tennis star's humour make him a fine father. "He (Roddick) will no doubt be the coolest dad on the block.

Clever Andy
"He's just the most clever person I've ever met," Decker was quoted as saying by American magazine Glamour.

"He has such a quick mind . . . he's so clever and his humour is very snarky. It always makes me laugh," she added.

Decker announced the good news via Instagram on May 2, when she posed holding her baby bump and captioned the picture: "So this happened... #the3ofus."

On May 4, the couple attended the 10th Annual Gala for Andy Roddick's Foundation that works with the community in Austin to expand opportunities for young people to learn, thrive and succeed.

Decker has also picked up fitness tips from her 32-year-old husband during pregnancy. "Being married to Andy has given me new appreciation for my body. He's taught me that it's not how thin you are that matters but how your body performs; how it endures wear and tear," said Decker who married Roddick in 2009.

Goof up
Ironically, the day Decker announced the news of her pregnancy, a leading international magazine mixed up the name of the father with Andy Murray.

'Andy Murray and Brooklyn Decker expecting first wife', read the magazine's headline.

Reacting to the wrong Andy, Murray tweeted later: "Not sure my wife and @andyroddick will be best pleased to find these out via Twitter! #error. Congrats to the real parents @andyroddick and @BrooklynDecker."