Michael Bipsing told Fox Sports: I want Dan Henderson. I owe Dan Henderson one. Everybody knows that. Everybody knows why. Henderson knocked out Bisping at UFC 100 in July 2009. It was one of the most brutal KOs in UFC history. The argument against making the fight is based on the rankings it doesn't make sense for the #13 ranked Henderson to fight for the belt. Henderson was actually supposed to fight for the light-heavyweight belt at UFC 151 in September 2012, but an injury pulled him out of that fight and he's never been able to get back into contention for a belt, until possibly now. The loss to Hendo is one that still irritates Bisping. Bisping recently said on Twitter: I do believe I owe him one. Henderson responded: I believe you'll owe me 2 after this If Henderson gets the fight and wins belt he will likely retire as he will be 46 years old, 19 years ago today Henderson made his MMA debut. The first UFC he fought in was UFC 17 in May 1998. He could fight Bisping at UFC 2