Tom Brady at 39 in his seventh Super Bowl. Roger Federer and Serena Williams win the Australian Open at 35. Age-defying athletes, and what they can teach us. Old comes early in professional sports. But lately, age-defying athletes are coming out on top.Serena Williams and Roger Federer, winning Grand Slams in Australia at 35. NFL quarterback Tom Brady headed into the Super Bowl this weekend at 39. Just getting there is pretty great. How do they do it? This hour On Point, Age-defying athletes at the top of their games, and what they can teach us about staying awesome. Plus , Super Bowl halftime acts, and Lady Gaga’s moment. Tom Ashbrook Guests Jason Gay , sports columnist for The Wall Street Journal. ( @jasongay ) Shawn Arent , director of the graduate program in kinesiology and applied physiology at Rutgers University, where he is also director of the Rutgers Center for Health and Human Performance. ( @ShawnArent ) Dara Torres , five-time Olympic swimmer and 12-time Olympic medalist.