On the UFC Vegas 54 prelims, Michael Johnson brutally knocked out Alan Patrick, and Andre Petroski put Nick Maximov to sleep with an Anaconda. The UFC Vegas 54 prelims are in the books, and aside from three decisions, two fighters went to sleep tonight — one by way of knockout, and the other by technical submission. Closing out the preliminary portion of the event, the UFC’s #8 ranked women’s flyweight, Viviane Araujo, won a unanimous decision over the #9 ranked women’s, Andrea Lee. This fight started hot, with both fighters doing damage and hurting the other in a wild opening…