Rihanna was allegedly assaulted by a fan outside of a London nightclub because of her reunion with Chris Brown.  Rihanna was left bloodied early Sunday outside a London nightclub when she cut her knee dodging a bottle hurled by a heckler spewing insults aimed at Chris Brown.  The 3 a.m. attack outside the Box Nightclub in London marred the “Stay” singer’s after-party celebration, marking the debut of her River Island collection at London Fashion Week. Rihanna was confronted by the crazed stranger as she left the hot spot.  The man, who has not been identified, began screaming at the superstar for rekindling a romance with Brown, the fellow singer who infamously beat her on the eve of the 2009 Grammy Awards.  PHOTOS: CHRIS BROWN AND DRAKE'S BAR BRAWL  A witness said the man threw a bottle of Lucozade, a British energy drink. Rihanna fell against a metal shop grate during the mayhem and cut her right knee.  She was seen dabbing her bloody wound as she was hustled to a waiting car.  Rihanna, sporting Manolo Blahnik Chaos sandals, an embossed crocodile biker jacket and a black mini-dress from her own clothing line, was leaving the club with best friend Melissa Forde and British fashion model Cara Delevingne when the ugly incident occurred.  RELATED: KATY PERRY FROWNS AT RIHANNA DATING CHRIS BROWN  Her bodyguard also injured his leg amid the chaos and had to be taken to a hospital for treatment, according to local reports. Rihanna, who turns 25 on Wednesday, didn’t mention the incident when she took to Twitter after returning to her hotel room and finding herself featured on the front page of The Sunday Times of London.  “Just so happens I came home drunk to this in a pile of papers outside my hotel room! My lil Bajan [Barbadian\] behind,” she tweeted along with a photo of the article headlined “Why Rihanna is the New Diana,” comparing her to the late princess of Wales.  The bottle-throwing attack came amid reports that Rihanna and Brown’s on-again, off-again relationship was off.  Just two days after the couple appeared all lubby dubby in the audience at the Feb. 10 Grammy Awards,  On Wednesday night, they showed up separately at the Playhouse Nightclub in Los Angeles and didn’t speak to each other.  The frosty cold shoulder Rihanna gave Brown was in contrast to affection they showed each other three days earlier, cuddling and smiling for the cameras at the Feb. 10 Grammy Awards. Rihanna also showed up to support Brown at his Feb. 6 court hearing in Los Angeles over whether he completed 180 days of community service ordered as punishment for beating her.  On mobile? Click for video
An irate London man apparently upset over Rihanna’s reunion with Chris Brown assaulted the singer Saturday night while she was in town debuting her new clothing line. The “Stay” singer was spotted with blood on her right knee after she was allegedly assaulted by the angry man outside The Box in England’s capital city.