What sport does Rudy Gobert play? Basketball?
He is an NBA player and he plays for the Utah Jazz
He was drafted #27. Did he expect to go higher? He was taken in the first round. That sounds pretty good to me. 
In the grand scheme of things it is pretty good but I think he thought he would be in the lottery picks so going 27 was kind of an insult to him.
He's seven feet tall, and almost 250 pounds. But in the NBA, is he that big? Plus he's French so maybe he expects more. 
That's pretty big even by NBA standards.  I have met him he is definitely that big no exaggerations there.
He didn't make it to the All-Star game. Is he really so good that he deserves to get in automatically? There must be a lot of competition.
He has actually now made the All-Star game 2 years in a row.  There is a ton of competition especially with who he gets grouped in with.
I bet there is endless debate over the "big men" and their importance on the team. But it's a game with five players, you know? One guy can only do so much.
But if you watch how he plays and what he does it allows the other 4 people to be more aggressive on defense because he can clean up any errors.