According to M-1 Global CEO Vadim Finkelstein, the former Pride FC veteran violated several conditions of his M-1 Global contract which prompted the release.
Finkelstein did not give any more specifics on the situation, but the move to release Emelianenko was surprising since his older brother actually owns part of the organization, and Emelianenko was one of the organizations biggest stars.
Emelianenko announced his retirement through his official Facebook account:
Dear fans, I want to thank you for your support, and for having supported me despite everything.
Unfortunately, I am no longer able to fight in the ring because of health problems caused by old injuries. Of course, as an athlete this is very hard to realize.
I am grateful to my fans and partners for their support, for believing in me, I am grateful to my supporters. Your passion has always made me move forward and achieve new results.
I realize now that I was struck by a barrage of accusations and negative criticism, not related to my direct supervision. Unfortunately, there will always be people who will want in on any negative situation for me. I wouldn't want to comment on something, explain,or justify them. Each of us make in life bad and good decisions. That is our essence. I'm sure I did a lot for sports, by my example drew many young people in gyms. The rest can be judge by God and time.
Now I want to give up any publicity and to take control of my health, my family. I lost my daughter, whom I love very much. Maybe sometime we'll meet with you again. Thank you! Be well and believe in God!