Rihanna spotted leaving nightclub with bloodied knee

R&B star Rihanna was involved in an altercation after a crazed fan threw a bottle at her while she was leaving a nightclub. According to TMZ Online, the 24-year-old was leaving the nightclub, Box, when someone threw a bottle of an energy drink at her while screaming something about her boyfriend Chris Brown. The Bajan beauty was caught on camera leaving a club with a bruised knee after a night of partying. She was wearing a little black dress and a leather jacket and was seen dabbing blood from her injured knee. Rihanna missed the bottle but scraped her knee during the debacle when she brushed up against a metal shop grate.