Adrian Wojnarowski: Patty Mills has been released by Xinjiang of China Basketball Assoc., source tells Y! Sports. He's been out 10 days with hamstring injury. Mills wants to return to the Trail Blazers, but it's unclear if he can obtain a FIBA letter of clearance to play before March, source says. Mills had wanted release from China, but precedent on getting letter of clearance for NBA before China season ends isn't on his side. Blazers have 15 on roster, so no guarantee letter of clearance gets Mills immediate return. China rules make it unlikely til March, anyway.