TMZ has learned Oksana Grigorieva's new PR rep Howard Bragman is out ... even before he officially signed on.
Sources tell TMZ Bragman had all but agreed to help Oksana -- that is until she gave an impromptu interview in front of a grocery store early this morning.
We're told Bragman completely supports Oksana and believes she is the victim here -- but, as one person put it, "He can't help a client who won't listen."
Interestingly, Oksana's last publicist Steve Jaffe said almost the same exact thing on his way out the door.
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