On February 26 and 27th in St. Petersburg, Russia according to ESPN.com
Fedor Emelianenko's participation in Combat Sambo ignores a 90-day medical suspension issued by the New Jersey Athletic Control Board for head strikes following the loss to Antonio Silva. ...The state regulatory agency also prohibited Emelianenko from fighting pending a CT scan of his head and facial bones.
Representatives for Emelianenko did not respond to questions about the heavyweight's decision to compete despite athletic commission medical suspensions.
The NJACB did not immediately respond to inquires regarding the potential consequences of Emelianenko's participation in the tournament.
"Fedor no longer competing in the Russian Combat Sambo champs over the weekend.
He is observing the 90 day suspension so that he can come back after that!"