Emelianenko will face American Jeff Monson in Moscow on Nov. 20, M-1 Global's director of operations Evgeni Kogan confirmed to MMA Fighting, squashing the previously rumored Nov. 12 date.
The M-1 event will take place at the Russian capital city's Olympic Stadium.
Emelianenko (31-4, 1 no contest) had gone nearly 10 years without losing before falling to Fabricio Werdum in a first-round submission in June 2010. Since then, he suffered stoppage losses at the hands of Dan Henderson and Antonio Silva, and was dropped by Strikeforce.
The Russian great hasn't fought in his home country since defeating Matt Lindland in St. Petersburg in April 2007.
Monson (42-12) is a well-traveled veteran who's competed in the UFC, PRIDE, Strikeforce and DREAM, among other promotions. He holds notable career wins over Sergei Kharitonov, Roy Nelson and Ricco Rodriguez.
The 40-year-old recently saw an eight-fight win streak snapped when he fell to Daniel Cormier in a unanimous decision loss under the Strikeforce banner. Cormier went on to enter the Strikeforce heavyweight Grand Prix, and has advanced to the final.
No television information for the Emelianenko-Monson fight is yet available for U.S. viewers, though M-1 is involved in negotiations to broadcast the fight here.