Well this is disgusting.
Forrest Griffin was all set to return to action at the Ultimate Fighting Championship's (UFC) annual year-end event, UFC 155: "Dos Santos vs. Velasquez 2" on Sat., Dec. 29, 2012, at the MGM Grand Garden Arena in Las Vegas, Nevada.
Then, he hurt his knee in training and was forced to pull out.
These things happen in MMA but normally we aren't privy to the gruesome images of it. And this one is nasty, coming by way of Forrest's Twitter account with the following message:
"This is what you get for Christmas when your (sic) naughty."
No timetable has been set for his return.