Three-time Formula One world champion Jackie Stewart is undergoing tests at a London hospital after becoming ill on a flight. The 71-year-old Scotsman passed out after complaining of chest pains during a British Airways flight from Geneva to London's Heathrow Airport. Hillingdon Hospital says in a statement that Stewart was "undergoing checkups and tests, and his condition is stable." Read more: http://sports.espn.go.com/rpm/racing/f1/news/story?id=6174051
