Chris Brown fans outraged by Karrueche Tran's bloody lip image posted on Instagram

Fans of the American recording artist and actor Chris Brown are upset with his on-again, off-again girlfriend Karrueche Tran after she posted a picture of her bloody lip on Instagram.

Seeing her image, the 27-year-old model's followers started speculating that something happened in her personal life.

"Rough day in Chicago," she captioned the image.

The Loyal singer had infamously assaulted former girlfriend, Rihanna in 2009, by hitting her so forcefully that she had major bruising on her face, a split lip, and a bloody nose.

Brown's fans came to his defence and blamed Tran for digging a grave.

One wrote: "Where exactly did she say Chris did this? She said rough day in Chicago. Chris is not in Chicago...Did your mind go to Chris because he hit a woman already?"

Another fan said: "Bro I can promise you Chris Brown ain't dumb enough to do no s**t like this again. Leave the homie out this s**t."

Brown supporter wrote: "Now why would u even post this knowing people going to speculate, be dumb and talk s**t cuz of Chris past.. looking for attention, stop acting so hurt and move on"

It was later revealed that Tran was referring to a photo shoot in which she was playing a street fighter, and the injury was just make-up.

"First and foremost, Karrueche didn't say, imply, or suggest that her lip had anything to do with anyone in particular. The way her lip looks is related to her work. That's it and that's all. The fact that anyone would think it's something more than what it really is, deeply bothers her," a source told Hollywood Life.

"In a country that prides itself on freedom, including freedom of speech, she's absolutely appalled she's getting such backlash and hatred after posting the pic. Her sole intention was to invite her followers inside her hectic work day," the insider added.