Flag: I defended James last year s US team training game. At first I was very nervous watching the game off the court.

Today, the Mavericks selected Cooper Flag with the No. 1 pick in the draft.

media Overtime released a recent interview with Flag. Flag looked back on his training game between the US Men's Basketball Team and the selection team last summer.

Flag said: "I defended LeBron (James) after I came on the court. I was just sighing, wow, this is real life. That's right, that was a relatively nervous time, and I was actually a little shocked. Seeing LeBron and Curry, seeing them all was an unreal feeling. At first I sat on the bench and watched them play, I thought it was cool. Later I calmed down and once I started playing, it was only basketball. I think many people don't understand this. You put in training and put in hard work. You just need to trust your efforts. After all, you just need to trust that it is basketball."