Last week Chris Brown was finally served with a restraining order from his ex-girlfriend Karrueche Tran after she accused him of stalking and physically abusing her [click here if you missed that].
Now Karrueche is ready to testify against Chris Brown in court...
Insiders tell TMZ
Karrueche Tran will do what Rihanna would not -- testify that Chris Brown brutalized her ... and she's not scared at all. We're told Karrueche has no fear about testifying that Chris allegedly kicked her down a flight of stairs, punched her in the stomach, threatened to shoot her and made other death threats ... this according to multiple sources connected to Chris' ex.