Oksana's New Rep -- Quits Before He Started

7/30/2010 2:32 PM PDT BY TMZ STAFF
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.