More disappointing news in the world of MMA, as Thiago Silva has also suffered a back injury that will keep him out of his highly anticipated contenders bout with Lyoto Machida, The fight was set to take place at UFC 89 on October 18th in England. Fortunately, for this particular bout, there is still time to replace Thiago with another fighter. I would argue that the replacement fighter will be a less threatening opponent, due to the short notice.
A truly disappointing development for a hotly anticipated fight.
Update: Link to MMAWeekly story