In sports, you simply aren't considered a real champion until you have defended your title successfully. Winning it once can be a fluke; winning it twice proves you are the best.
“I'm the worst rider. I'm a terrible rider. Me and horses are not a good mix. For some reason, people are always trying to get me on a horse in a movie.”
“For the past eight years, the right has been better at working the refs. Now the left is learning how to play the game.”