The Sixers' scheduled game Sunday night against the Thunder has been postponed, the NBA announced.
The team does not have the required eight players available because of ongoing COVID-19 contact tracing.
Leading into Sunday's scheduled contest in Oklahoma City, Seth Curry and Vincent Poirier had been listed out on the NBA's 5:30 p.m. injury report because of the league's health and safety protocols. Joel Embiid (right knee pain) and Mike Scott (right knee swelling) did not travel with the team for reasons unrelated to COVID-19.
The Sixers learned of Curry testing positive for COVID-19 during the team's Jan. 7 game against the Nets. He's since been away from the team. Tobias Harris, Shake Milton, Matisse Thybulle and Terrance Ferguson returned Thursday after being sidelined for health and safety reasons.
It appeared the Sixers had been warming up in Oklahoma City and expecting to play a game until approximately 5:30 p.m.
A source confirmed to NBC Sports Philadelphia the Sixers have no new positive COVID-19 tests and that the postponement is related to contact tracing from Saturday night's game against the Grizzlies. PhillyVoice's Kyle Neubeck was first to report that the Sixers had no new positive tests.
The Grizzlies announced Sunday night that center Jonas Valančiūnas will be out for Memphis' scheduled game Monday vs. the Suns because of the NBA's health and safety protocols.
The Sixers are scheduled to play the Celtics on Wednesday and Friday in Philadelphia.
This story will be updated when more information becomes available.