Aging athletes such as LeBron James, Cristiano Ronaldo and Lindsey Vonn are similar to racing cars ... Others like quarterback Tom Brady, hockey's Jaromir Jagr, and pitcher Nolan Ryan retired ...

Others like quarterback Tom Brady, hockey's Jaromir Jagr ... eating something or has some contraption attached to him.” Lindsey Vonn's comeback and her titanium knee Vonn is making a comeback ...

LeBron, Lindsey Vonn, Ronaldo Keep Going ... Others like quarterback Tom Brady, hockey's Jaromir Jagr, and pitcher Nolan Ryan retired at the top and well into their 40s. Martina Navratilova ...