Rafael Nadal, I think he is an example for all younth. From a young age he knows what he has to work hard to get what he wants. His knees are his weak point, he has had twenty four injuries in sixteen years. But definitely his most important injury was in 2012, for which he could not be in the Olympic Games or play seven major tournaments. He was seven months off.
But despite all the dificultes, he trusted himself, worked very hard to come back to be number one in the world. So it seems to me that he is the best example of a person with resilience.