Famous Athletes Who Battled Asthma: Inspiring Stories

* Serena Williams, professional tennis player

* David Beckham, professional soccer player

* Jackie Joyner-Kersee, Olympic track and field athlete

* Paula Radcliffe, Olympic marathon runner

* Lance Armstrong, professional cyclist

* Wayne Gretzky, professional hockey player

* Dan Marino, professional football player

* Magic Johnson, professional basketball player

* Muhammad Ali, professional boxer