The NBA has called a Tuesday news conference to make an announcement about the investigation involving Los Angeles Clippers owner Donald Sterling.

The league says it will announce further details, though it's not clear when those are coming.

Sterling is being investigated over allegations he made racially charged comments in a recorded conversation with a woman. Portions of that conversation were released over the weekend by TMZ and Deadspin.

The players' union has asked Commissioner Adam Silver to rule quickly, preferably before the Clippers play host to Golden State in a critical Game 5 of their knotted-up Western Conference first-round series on Tuesday night. Silver has said the league would move quickly on the matter.

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