Overeem on Thursday revealed the nature of the injury.
“Injured! Caught a slight tear in my quad so unfortunately out of May 25′s UFC. Not happy to let you guys down!” he tweeted.
The fight had been a long time coming since dos Santos and Overeem’s public war of words last year. dos Santos, usually a fairly reserved talker, even called for a fight with Overeem because he was tiring of the Dutch fighter’s trash talk.
The fight finally came together when dos Santos lost his UFC heavyweight belt to Cain Velasquez and Overeem lost his shot at the title to Antonio “Bigfoot” Silva.
After Overeem dropped out of the bout on Wednesday, Mark Hunt, who is on a four-fight winning streak, lobbied to step in and fight dos Santos.
“I want in troops and only the boss @danawhite can make it happen lets go army ATTACK the general wants in on this fight,” Hunt tweeted.
“It’s not gonna happen. JDS vs. Overeem will,” said White.
Overeem’s injury isn’t expected to keep him sidelined for long, so apparently the UFC is willing to wait for him to heal up and keep the grudge match intact.