As far as the real "main event" was concerned, i don't think a single punch was thrown in the first 3 minutes. I don't know what sort of fighting sport that would be acceptable... I can't think of one.

I remember hearing the referee telling them "you are making championship fight money for this, how about earning some of it?" or something along those lines. Dana White was not pleased but as I think @cryptoandcoffee mentioned, it seems as though White is displeased about most things :P