The Philadelphia 76ers are increasingly frustrated with Ben Simmons’ refusal to accept organizational assistance to address his mental readiness to play, sources told ESPN. While Simmons has been working with team doctors to treat a back ailment, he has been unwilling to meet with team doctors to discuss his mental readiness, sources said. Instead, sources said, Simmons has worked with mental health professionals via the National Basketball Players Association since the summer. So far Simmons has yet to provide details of those meetings to the team, sources said. – via Ramona Shelburne, Adrian Wojnarowski @ ESPN