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"Rihanna injured her knee on her way out of a London nightclub after being accosted by a stranger.  The 24-year old was partying with friends including Vogue cover model Cara Delevingne when the incident occurred.  The &amp;#039;Umbrella&amp;#039; singer sustained minor injuries in a fall after a bottle was thrown in her direction, according to TMZ.   Rihanna, who is in London for Fashion Week, was leaving The Box club in the early hours of Sunday morning (February 17) when a passer-by is alleged to have hurled insults at her about Chris Brown. The individual also threw a soft drink bottle towards her, but missed. Rihanna is then reported to have scraped and bloodied her knee on a metal shop grate in the commotion. The singer&amp;#039;s spokesperson is yet to comment on the alleged altercation. Rihanna unveiled her new designs at Fashion Week on Saturday night (February 16), showing off her River Island collection. Watch a video of Rihanna talking about her River Island collection below:  Rihanna debuts River Island collection at London Fashion Week - photo gallery:  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/showbiz/news/a459473/rihanna-sustains-minor-knee-injury-after-being-accosted-at-london-club/>