Life, like tennis, requires split-second timing and a keen ability to anticipate. Just ask Andre Agassi and Steffi Graf, who only four days after their hastily arranged at-home wedding in Las Vegas on Oct. 22 were reveling in their latest title: parents. Weighing in at 5 lbs. 14 oz., son Jaden Gil Agassi arrived a few weeks ahead of schedule but "in great health," says Agassi's friend and lawyer Perry Rogers. "He's gorgeous—a little bit of black hair, beautiful face. Just a great-looking boy."

Graf, 32, who had been suffering some discomfort toward the end of her pregnancy, was brought to Las Vegas's Valley Hospital Medical Center and gave birth in a private suite at 3:30 a.m. on Oct. 26, with Agassi, 31, at her side. Mother and child bounced back so quickly that the family left the hospital for their nearby home before the end of the day. "Steffi is doing great, and Andre is very excited about being a father," says Agassi's sister Tami. "This is the proudest day of our lives," the couple said in a statement. "We look forward to the joys and challenges of parenthood."

Will those challenges include building a court dynasty? "If there were IPOs on children's future athletic abilities, I know where I would invest," says retired tennis pro Jim Courier. And Agassi once mused that the couple's offspring "would probably cover a lot of real estate out there on the court." Of course, Jaden Gil—whose first name is simply a moniker both parents liked and whose middle name honors Gil Reyes, Agassi's trainer—may have competition: When it comes to kids, Agassi has said, he wants "a few for sure."