Recently, former NBA player Theis participated in the "Euro Insider" program and talked about his former teammates Harden and Irving.

He said: "I think what really makes them (stars) gap with the outstanding players or ordinary players in the NBA is their professional qualities. For example, I still remember the first year I worked with Kyrie Irving. Obviously, everyone thinks that his talent is for God to give him food, but his left-handed finishing skills are practiced every day. He will practice various finishing movements such as playing the left hand and hitting the basket alone in the training hall, which is the case every day."

"He has practiced James Harden's step back too many times, and that action has been perfect. If people want to defend against this action, he has a way to deal with it, just like his throwing shots in the Rockets. So I think this is also one of the characteristics of top players: they not only have a signature move, but also the first set of alternative moves to deal with defense, and even the second set of alternative moves."