He's going for the ball. He wanted to spike it like a volleyball and also has terrible eye-hand coordination. Just an accident.
BIg game tonight for the Grizz as they don't want to head to SF down 0-2. They need to come out like the Celtics did and play with max intensity, effort as well as great execution. Game 1 was absolutely great (and the most-watched semifinal opener since 2011) and I hope we get another hot contested game. A Grizzly win tonight will keep this series the most entertaining of the conference semis.