Doncic, of course, has yet to appear in a playoff game. He has also missed 11 games this season after spraining his right ankle twice, raising fears that the injury will linger.

Doncic is shooting just 32.3 percent on 3-pointers and 76.5 percent from the free-throw line — two areas where he could clearly improve. He has likewise chided himself publicly about his penchant for arguing with referees.

So the 6-foot-7, 230-pound playmaker is hardly infallible.

But he is about to step onto one of the game’s biggest stages. In earning this summons to Chicago, and a starting spot in Sunday’s All-Star game, Doncic has strengthened his case to be perceived as one of the 10 biggest stars in the league, through both his popularity and his statistical production.

On Friday, at the request of N.B.A. Commissioner Adam Silver, Doncic appeared on a heavyweight panel at the league’s annual technology summit alongside the TNT commentator Charles Barkley, 10-time All-Star Chris Paul of the Oklahoma City Thunder, W.N.B.A. star Candace Parker and Vivek Ranadive, the owner of the same Sacramento Kings that selected Marvin Bagley rather than Doncic with the No. 2 overall pick in 2018.

Doncic also will get a chance to meet the former Chicago Bulls legend Michael Jordan in person for the first time after he signed a five-year sneaker deal with Jordan Brand in December.

“It’s everything I dreamed about as a kid,” Doncic said.

He returned to the Dallas lineup on Wednesday after a seven-game injury absence. Mark Cuban, the Mavericks owner, has been joking all week that Doncic would have played in the game “in a cast” if he had to in order to prove his readiness for the All-Star game on Sunday.