Adrenaline MMA was a mixed martial arts organization that operated primarily in North America.
In October 2007, Sibling Entertainment Group, a producer of theater and other entertainment,[1] announced that its newly created subsidiary, Sibling Sports LLC, was purchasing M-1 Mixfight, a Russian-based mixed martial arts promotion owned by Vadim Finkelstein.
Along with the purchase, Fedor Emelianenko, the last PRIDE Heavyweight Champion and a free agent managed by Finkelstein, was to sign with the new organization.
[2] Finkelstein, however, continued his M-1 operations in Russia, running the M-1 Mixfight website independently of Sibling and Cox and promoting his own events under the M-1 banner.
Finkelstein would resume his operations with M-1 Mixfight, while the Sibling subsidiary headed by Cox would be known as Adrenaline, not to be confused with "ADRYNYLYN" which is an up-and-coming MMA promotional platform based out of Chicago Illinois.