(Undated)  --  Trail Blazers guard CJ McCollum is withdrawing from USA Basketball training camp next month.  He was one of the 20 players invited to camp ahead of the 2019 FIBA World Cup.  He joins Anthony Davis, James Harden and Eric Gordon as players who have pulled out.  Meanwhile, teammate Damian Lillard is expected to decide in the coming days whether or not he'll participate.  The World Cup takes place August 31st through September 15th in China.