CNN Sanjay Gupta MD July 20, 2013 20:59:00
That was his trial by fire. but on the other hand, you have someone like roger who saw a coupon in the newspaper for tennis rackets, decided to give it a try and picked it up at 75. >> that's the 100-year-old tennis player, but he picked it up at 75 years old. >> but he's been playing for 25 years now. >> we saw him get a winner against a 94-year-old. >> have you changed yourself, keith, salt of doing this documentary? >> people ask, how do you become a senior athlete, is it what they eat or their eating or sleeping patterns? we had that in the back of our head as we were doing the filming, wh...