According to Alistair Overeem, Valentijn’s younger brother on twitter:

My brother Valentijn is fighting Antonio Silva on 4 december for his Strikeforce debut! Great news!

Antonio "Pezao" Silva (14-2)
Win Andrei Arlovski - Decision (Unanimous) Strikeforce 5/15/2010
Loss Fabricio Werdum - Decision (Unanimous) Strikeforce
Win Jim York - Submission (Arm-Triangle Choke) Sengoku 10

Valentijn "The Python" Overeem (28-25)
Win Catalin Zmarandescu - KO (Knee) K-1 World GP 5/21/2010
Win Tengiz Tedoradze - KO (Head Kick) PFC 2
Loss Rafal Dabrowski - Submission (Punches) BOTE

In Fedor Emelianenko news - Evgeni Kogan, M-1 Global’s Director of Operations tells Sherdog.com that Fedor and M-1 Global contract extension negotiations are ongoing and "promising":

The earliest Emelianenko could compete again under this arrangement would be at a yet-to-be-announced Jan. 29 event.

Rumored card so far:
- Dan Henderson vs. Renato "Babalu" Sobral
- Herschel Walker vs. TBA
- Antonio Silva vs. Valentijn Overeem
- Melvin Manhoef vs. TBA
- Scott Smith vs. Jesse Finney

Strikeforce: Henderson vs. Sobral coverage