Some NBA players are secret vampire-hunters.
and the Ultimate Vampire Adam Silver hates these vampire-hunters.

Because Joel is one of the secret vampire-hunters. He is in fact the lead vampire-hunter coordinating the assault on those against humanity. Since he plays the position of Centaur, he secretly has inherited the speed and powers of ancient prehistoric giant horses which have been in a war with vampires for ages.

NO!!! Ben Simmons just stinks at shooting!
but there is a reason for this. Since he was a child, his father has trained him to throw stakes at vampires with his left hand so he could brag that his kid can take out vampires even with his off-hand. He is amazing at throwing stakes but terrible at throwing basketballs with this hand since the density/weight/height of a basketball is very different. Why doesn't he just use his right hand you may ask?! Cause he uses his right hand to handle a silver sword and he does not want to mess up his main arm used for extreme combat for trivial mortal matters of basketball!

YES, but only the elite ones are. They are controlled by a Lord Referee and his apprentice (Tony Brothers and Scott Foster). The Foster-Brothers syndicate control most NBA games.
They feed on the blood of random fans, especially fans known for yelling "Refs, You Suck!". If anyone dressed in black and white ever offers you a chance to meet the players for an autograph, please say 'NO' if you value your life. They will take you in a secret room labeled 'Player Autograph Room' but no players inside. Instead they drain your blood in this room, while laughing like maniac and comically saying to you "Refs, we do suck! .... .... your blood!!! Muh hah hah hah (laughing maniacally)"

Yes and he finds it very ironic that silver can weaken him and yet his last name, which was bequeefed to him in the 10th century, is Silver. The current NBA Championship trophy is hence made from vibranium and has a 24 karat gold overlay. Silver metal was removed so that Adam Silver could handle the trophy.

the NVA (National Vampire Association), and they wish to impose a NVO (New Vampire Order) upon us.

MAYBE! but do your own research, and consult with your local theologian, historian, and doctor and come to your own conclusion.

They call me Q, and hopefully You and I support the QUI9!, an order of 9 muskateers who battles the vampires along with vampire-hunter-players in the NBA like Embiid.
We give the tonic of knowledge to the public so they can understand how this insidious leader works.
We would prefer he steps down and a more diverse leadership of former players/vampire-hunters takes over instead of 1 powerful leader who acts undemocratically!