Not every meniscus tear is =. Once you get an injury like that once, the chances of getting it again go up. He had the same injury last year.
His knees obviously don't really work to play basketball at the highest level.
I'm guessing the bet money was hyperbole but that is likely a bet you would lose.
+1.
Is a chronic injury and very very painful... you can have your ankle, shoulders, hands injured and still be somehow functional... your knee... whole different game, you feel really vulnerable with a busted knee