The challenge was laid out prior to WrestleMania 27 and as we all know, it never came to fruition.
Now, UFC loudmouth Chael Sonnen has decided to weigh in on this news and really let McMahon have it.
So, after reading those tweets, you may be asking yourself if he is serious.
My answer to that is maybe. Overall, Sonnen is a take-no-prisoners type of guy and has no problem telling it like it is. Even though this has gotten him in some hot water, it hasn't changed him in the least.
In fact, Sonnen has been looked upon by many as one of UFC's best promo guys, and it's because of this that many of his fights draw attention. Don't get me wrong, Sonnen is a solid fighter. However, when it comes to the war of words, there is none better in the UFC.
Ultimately, Sonnen is a fan of the WWE's product and is also friends with CM Punk. Last year, Punk was supposed to be Sonnen's corner man for one of his UFC bouts, but WWE put the kibosh on it.
Unfortunately, we have yet to hear anything from WWE or McMahon about the challenge. Chances are we probably won't, as Vinnie Mac has been keeping a low profile these days, and unlike the McMahon of old, he only emerges for WWE storylines.