He is only a normal man. He had a lot of injuries in this year. It is very hard to keep good form on constant, high level. He must build it slowly again. He is young and he has still chances for victories in important competitions. It is not obliged to be crossed out his chances. Nowhere it is said, that it is necessary to win most important competitions for 24 year old, because it falsehood.
I am sure he will not want this year "wiped from his memory" just because it has been an unfortunate year. I would bet he has learned a lot about himself and about valuing what you have when you have it. Not to mention patience. He may look back at this dark year with real admiration some day.