first of all, poole is ALREADY reaching for the ball when Morant moves his leg which causes Poole's hand to grab his leg instead of for the ball.

two, no nba player has the thought to go "you know what, lemme grab this guys knee and try to wrench it into an injury." on top of that, even if there was a quintillion chance that such a thought could be had in that moment, it's HIIIIIIIIIIIIIIIGHLY unlikely you'd even injury the guy doing THAT. it's not like he put him in a figure four leg lock, LOL.

anyone thinking this is intentional is grasping at straws.