The Spurs waived Aminu on Monday, Shams Charania of The Athletic reports.
Aminu appeared in only one preseason game due to an illness, which may have cost him a spot on the opening day roster. The 6-foot-8 forward was traded to the Spurs this offseason as a part of the deal that sent DeMar DeRozan to Chicago, but he will likely start the regular season as a free agent.