Shockwaves were sent through the MMA world this evening when it was revealed the owner of Strikeforce’s much-maligned heavyweight championship, Alistair Overeem, had been dropped from the promotion with one fight remaining on his contract.

The jaw-dropping news came via a report on HDNet’s “Inside MMA” where injuries were cited as the reason for his release with a reference also made in regards to the Dutchman’s refusal to fight in September as part of the promotion’s World Grand Prix semifinal round.

Overeem exits Strikeforce with a 4-0 record including wins over Vitor Belfort, Brett Rogers, and Fabricio Werdum. His last appearance under the Strikeforce banner came in June against Werdum where he outpointed the submission artist in a lackluster result to what had previously been billed as a “must see” heavyweight fight.

While his MMA future is unknown, one certainty for the 31-year old appears to be an October date in the Netherlands as part of a United Glory kickboxing event. Overeem has also expressed interest in trying his hand (or hands as they case may be) in boxing.