Andy Roddick, 26, married his girlfriend, model Brooklyn Decker, 21, at his Austin, Texas, home on Friday. Guests included Steffi Graf, Andre Agassi and Elton John, who treated guests to a musical show. Roddick met Decker by having his agent track her down after she appeared in Sports Illustrated's swimsuit issue. The two have been dating since 2007. (Photo: WENN)