Chua really has been a much needed breath of fresh air to pool over the last year or two.
Fun to watch, expresses passion and seems like an all round good egg.
The cue ball was definitely not reacting normally in the videos I saw. That being said, surely if there was a substance applied to the ball it would likely be there for subsequent matches either on the balls or transferred to the tables. So although it does look like something has nefarious occurred it does seem a little unfair to point fingers without direct proof of someone applying the substance.