Silva dropped the news to Fighter's Only:
I am here to talk about my last few days. I went through a very tense and difficult weekend and had a very hard decision. Two weeks ago I felt pain in my knee while I was training wrestling. I had an MRI of my knee and three doctors told me my knee was torn. I took medicine to help with the pain, and although my knee felt loose, I said "no," this date is very important to me and I continued training," Silva says.
"I tried training more upper body and boxing; I kept losing weight and I was gonna fight no matter what. Last Friday, during sparring, I injured my rib. It was very painful and the next day I had an x-ray and an MRI. I discovered I had three broken ribs.
"After years of fighting, my body made me stop this time. I am here to tell you that I cannot fight on this card. I am very sad because I trained for four months. This is a very difficult time for me. Now, I know that I need to have surgery on my knee. I have no option.
Man, this is a tough break for Wanderlei Silva. I wonder if he'll be able to fully recover from this knee injury at his age.