One of the most competitive sports in the world is cycling. A very accessible and simple sport, requiring relatively little thinking or strategy, the real competition in cycling is against yourself.
The motivation to grind out a more and more intense training schedule is what drives athletes to greatness is cycling, so a lot can be learned about motivation for practice and training from the world's best cyclists.
Watch this video to learn the best ways to motivate yourself to train for cycling, which can be applied to any sport, of course. A cyclist's motivation will take you far for your preparation for any other sport.