OKLAHOMA CITY — The NBA and FIBA are jointly exploring a new professional men’s basketball league in Europe, but NBA Commissioner Adam Silver indicated that its launch is still a few years away, emphasizing a careful approach involving all stakeholders, including existing leagues and teams. The NBA is in discussions with the EuroLeague about a potential partnership, aiming for a 16-team league that integrates with national competitions, which Silver views as a form of expansion to enhance the commercial opportunities and better serve European fans. NBA owners will discuss next steps in July, as creating this league poses significant challenges.