Today Forrest tweeted out a photo of his knee with the following message:
This is what you get for christmas when your naughty lockerz.com/s/271334356— Forrest Griffin (@ForrestGriffin) December 23, 2012
Griffin last fought against Tito Ortiz at UFC 148 in July. He took a unanimous decision over Ortiz in their third fight. He'd beaten Ortiz in a split decision at UFC 106 and lost to Ortiz at UFC 59 in 2006.
The 33-year-old Griffin has struggled with injuries and has openly struggled with motivation to continue his fighting career in the last couple of years.