That is why he is always giving his best every regular season and every single game.
He don't want that to happen again.
But I agree that he should be more serious and careful.
When the playoff time comes Lebron will be healed and doing better, and AD hopefully will be better as well, so we are going to see both of them play better because they got a rest during their injury period as well, that should help with such a fatigue filled season with little break. Obviously it is not going to be easy for them, but it is not going to be that difficult neither so I do not think that it should be a problem for them.