Philadelphia 76ers center Joel Embiid, the third overall pick in the 2014 NBA draft who missed his rookie season with injury, suffered a setback in the healing process of his right foot, league sources told Yahoo Sports.

After weeks of rigorous workouts, Embiid had not felt pain in the foot, but a recent CT scan revealed an issue in the healing process, sources said. Philadelphia is consulting with doctors on how to best proceed, and it's still premature to speculate on the possibility of another surgical procedure that could sideline Embiid, sources said.

Embiid had been expected to participate with Sixers' summer league teams in July, but that could jeopardized now, sources said. For now, it is too soon to tell how long Embiid will be kept out.

Embiid had surgery for a stress fracture in his foot several days before the 2014 draft, and the Sixers ultimately decided for him to sit out the entirety of his rookie season. Eyewitness accounts of Embiid's workouts in recent weeks in Southern California described dominant, explosive performances, offering a glimpse into the kind of potential that could have had Embiid selected first overall in the 2014 draft. He had been the dominant player in the predraft process after playing one season at Kansas.