Josh with owner Mat Ishbia, and NBA Commissioner Adam Silver, during the Suns NBA All-Star 2027 press conference.

Josh Bartelstein practically grew up inside one of those behind-the-scenes sports documentaries that have become so popular.

The Highland Park native is the son of Mark Bartelstein, one of the most successful agents in the business, with dozens of clients in the NBA and NFL.

Back in the early days, whether they were headed to a youth basketball practice or a game at the United Center, Mark often had to conduct business along the way.

“I would sit in the backseat of the car and listen to him talk to different GMs and executives about his players,” Josh said. “I would always listen to those calls. My dream was to be on the other side of that.”

The dream came true. Bartelstei

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