Photo: Philadelphia 76ers/Twitter

The NBA is launching an inquiry into James Harden‘s public callout of the Philadelphia 76ers president of basketball operations Daryl Morey, according to ESPN’s Adrian Wojnarowski and Ramona Shelburne (Twitter link).

Wojnarowski reports that the NBA is trying to figure out if Harden might break the rules by sitting out next season and if his comments relate to skirting salary cap rules through previous talks with the Sixers.