NBA commissioner Adam Silver. Brad Penner-USA TODAY Sports

The “One-and-Done” rule will likely remain intact for several years, even if changes are made in the next Collective Bargaining Agreement, Adrian Wojnarowski of ESPN reports in a Twitter thread.

Lowering the current 19-and-over draft age is a significant part of NBA/NBPA CBA discussions — which have already begun in earnest —  but there has been no progress regarding the elimination of the “One-and-Done” rule. Even if changes are made, it wouldn’t be instituted for several years due to commitments already made by teams to trade future draft picks under the current system.

As ESPN’s Bobby Marks notes, only nine teams control all their future first rounders for the next seven years. Many of those traded picks are protected to varying degrees.

Another sticking point in current negotiations is the league’s desire that players provide medical information and physicals to all 30 teams. Many agents have withheld that information from certain teams in order to discourage them from drafting their player. Those particular league and NBPA conversations have yet to begin, Wojnarowski adds, and will be a part of the much larger CBA discussions.

The “One-and-Done” rule was put into place in 2006.

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