Ben Simmons has refused assistance from the Philadelphia 76ers to address his mental readiness to play, sources tell ESPN.

Simmons has been working with team doctors to treat a back ailment, but he's so far been unwilling to meet with team doctors to discuss his mental readiness. 

Simmons has instead worked with mental health professionals via the National Basketball Players Association since the summer.

Simmons hasn't rejoined full team activities to this point and it's unclear when or if he will. 

The 76ers stopped fining Simmons since he reported on Oct. 22 and expressed that he wasn't mentally ready to play.