The headbutt.
Go to the 4:27 mark.
http://m.ufc.com/media/UFC-187-Free-Fight-Johnson-vs-Gustafsson-V2
Right after the eyepoke, they come back to fight and AJ ducks and then headbutts Alex clearly. It is the beginning of the end for Gus after that. I would like to see them rematch sometime because I never thought this was a clean win.
You're right, I definitely did forget about that. Definitely unintentional though.
LOL@ it not being a clean win.
Ido Porno - There's an angle that shows no headbuttThere is an angle at the 6:04 mark that looks like he hit him but it also still looks like his head hit him.

All I remember is Gus trying to throw a kick immediately off the glove touch and getting smoked for it
Duke Cockhold - All I remember is Gus trying to throw a kick immediately off the glove touch and getting smoked for it
Same. He tried an immediate front kick off the touch if I remember correctly.
Didn't we already CSI this after it happened and the different angles showed it was the punch and not the headbutt?
I thought the headbutt was debunked, but also I have a bad memory
Old news. If you look at all the angles, it was clearly the punch that dropped him.
www.bloodyelbow.com/2015/1/28/7921303/ufc-on-fox-alex-gustafsson-vs-anthony-rumble-hohnson-headbutt-controversy
I am a huge gus fan but that was no headbutt. Thats just what rumble does when he connects early
Fuck off