The cute couple is going to have one full house this fall! Decker, 28, married the retired tennis pro, 32, in 2009 at their home in Texas, and they're already parents to two bulldogs, Billie Jean King
and Bob Costas.
Which kind of explains this roomy top she wore to the premiere of her new show, Grace and Frankie, three days ago…
Thanks to throwback pics Decker posted last August on both her hubby's and her little brother's respective birthdays, we can only assume this will be one athletic, blonde kid!