Markelle Fultz has been diagnosed with a medical condition that is said to be severely impacting his ability to shoot.
Fultz's injury has resulted in "abnormal functional movement and range of motion", according to ESPN's Adrian Wojnarowski.
Fultz has not played since November 19 while seeing specialists.
Fultz's representatives informed the Sixers last month that the guard would be shut down until he had been examined by specialists.
"There's no way you're the No. 1 pick in the world and all of a sudden your aren't able to consistently raise your arms to shoot", Fultz's agent told ESPN.
While responding to Fultz's latest setback, ESPN analyst, Stephen A. Smith, expressed his belief that the 76er is possibly the biggest bust in National Basketball Association history. Fultz lost his starting spot in the rotation when the Sixers traded for Jimmy Butler.
That being said, the mysterious case of Fultz and his inability to shoot has taken many different turns over the past year, so chances are this diagnosis is far from the end of the drama surrounding what is quickly becoming one of the biggest busts of all time.
He played only 14 games as a rookie in 2017-18 and averaged 7.1 points on 40.5 per cent shooting.