On Saturday night, the minidress-clad chanteuse was reportedly partying at hot spot The Box with model Cara Delevingne when someone hurled a bottle of energy drink Lucozade in her direction, along with a few choice words about her sometime squeeze, Chris Brown.
While the bottle didn't connect, the resulting tumult apparently caused RiRi to fall against the grate of a shop window and scrape her knee (see photo below). No word on whether the alleged Brown-related insults hit the mark.
The injury, such as it was, seemed to need only a bit of disinfectant and perhaps a SpongeBob-themed Band-Aid.
RiRi is in London for Fashion Week and had just presented her debut collection for British retailer River Island before the club kerfuffle.