Deandre Jordan -- Sign of Protest ... In Wake of Sterling Audio

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Looks like Deandre Jordan got Jesse Jackson's message ... 'cause almost an hour after the Reverend called for a "symbolic expression" among Clipper players to protest Donald Sterling -- their star center seemingly obliged.

Deandre took to Instagram minutes ago and posted a blacked out pic ... which was done last year to show support for Trayvon Martin by people across the country.

The Clippers star didn't caption the photo ... but like they say ... a picture is worth a thousand words.