He has struggled in his last two stops, New York and Detroit.
NBA players faced burdensome and literally tiring protocols amid the coronavirus pandemic last season.
Ben Simmons, seeking a trade from the 76ers, is threatening not to report to training camp.
Kevin Durant said he isolated himself after Draymond Green's infamous blowup at him during a 2018 Warriors game.
Nets big LaMarcus Aldridge suddenly retired due to an irregular heartbeat in April.