The devil, as always, is in the details. The NBA is still aiming to tip off NBA Europe in the fall of 2027, but as talks with potential partners heat up, some major sticking points have emerged—chief among them, how players move between leagues and, of course, the money.

According to a detailed report from Joe Vardon at The Athletic, the most headline-grabbing request has been for a soccer-style transfer window in the new basketball league. In this model, teams wouldn't trade players while navigating a salary cap like in the NBA or other American sports. Instead, they'd purchase a player's contract outright—and the league's potential new partners want the ability to buy NBA players' deals.

Here's the scenario Vardon lays out: Imagine a wealthy European football conglomerate starts a basketball team. The club picks up the phone and calls the Milwaukee Bucks, who—for the sake of argument—are having a rough season. The club says, "Hey, here's a couple hundred million dollars, whatever it may cost. How about Giannis Antetokounmpo comes to play for us in NBA Europe?"

The NBA, however, quickly and emphatically shut that idea down—multiple times. The league wants NBA Europe to be a completely separate entity. While players can jump from the NBA to Europe as free agents, the NBA doesn't want that kind of in-season movement. Instead, the league might envision something closer to Major League Soccer, where older stars from European leagues come stateside for a few more paychecks.

This has created friction with the kind of investors the NBA is courting—powerhouse soccer clubs (which bring built-in fan bases) and deep-pocketed public or sovereign wealth funds. According to one anonymous source, these potential partners paused at the idea of essentially investing in a minor league. They're not looking to build a feeder system; they want a league that can compete for top talent, both on and off the court.

Beyond player movement, franchise fees and revenue distribution have also become sticking points. The NBA is asking for significant buy-in from its European partners, but how that money flows back to teams—and how much control the league retains—remains a point of negotiation. For a league that prides itself on global reach, these early hurdles show that building a basketball empire overseas is going to take more than just a great game plan.