It always amuses me to watch people bring up the testosterone issue and use it as the go to excuse why Sonnen had so much success, let alone any success against Anderson as if it was the only reason he survived the first 10 seconds let alone 4.5 rounds.
As a fan of both fighters its obvious to me, Sonnen is just a bad matchup for Anderson, elevated T/E or not. There is no doubt that being amped out of your mind on testosterone is an advantage and surely played some part in the fight but it doesn't erase the fact that Sonnen has always fought the same way (read even when he didn't fail a test) He comes forward relentlessly and puts people on their asses. Sonnen has absolutely steam rolled fighters with better takedown defense than Anderson so why it was such a super human feat surely due solely to "steroids" to take Anderson, who has pretty average TDD down at will is beyond me. To put it simply, on a bad day, with a negative testosterone level, I would pick Sonnen's takedown over Anderson's TDD any day. And that's not a knock on Anderson really either, there are not many people that can stop his shot.
I'd would dare say that Anderson's rib injury (if you believe it) played a bigger part than the T/E issue. Anderson is usually a counterstriker and uses that insane accuracy and speed to his advantage, against a guy like Sonnen who applies constant pressure in the form of wrestling (i.e. strikers who charge Anderson tend to get KTFO) he was going to need to be on the top of his game to launch an attack before Sonnen inevitably took him down and a rib injury is going to definitely throw that off. Anderson is in his sweet spot when fighters try to exchange with him, Sonnen doesn't really do that, he throws shots to set up the takedown and wasn't going to leave windows to be countered so Anderson really needed to be on his game to pick Sonnen apart on the way in.
The way I see it, unless Anderson has drastically improved his TDD, he is going to get put on his butt again. The question is, will a healthy Anderson vs a testosterone neutral Sonnen be able to deliver the death blow before he is taken down? If not, he is going to get ridden hard again and I have a feeling that Sonnen will play it a little safer if it goes to later rounds this time. If anyone can end a fight in a spectacular fashion though, its Anderson so thats why I am amped for this fight.
Just hope it lives up to the hype