The injury occurred late in the first quarter of the game after Jackson attempted a 3-point shot from the corner. As Jackson was backing up while tracking his shot, he stumbled over a waitress who was crouched down to serve Bloomberg.
Adding insult to literal injury, Jackson missed the shot. He was 0-for-2 in his three minutes of action before leaving the game with a sprained right ankle.
Surprisingly, this sort of thing happens during NBA games more than you would think.
Video via The Point ForwardGoogle+