Bruce Buffer explains ?It?s fight time?

During recent UFC events, you may have noticed UFC Octagon announcer Bruce Buffer changing up his signature call of, "It's tiiiiiiiiiime" to "It's fight tiiiiiiiiiiiiiiiime."
I was confused by this. Why would Buffer mess with such announcing perfection...

Source: http://sports.yahoo.com/blogs/mma-cagewriter/bruce-buffer-explains-fight-time-174055101--mma.html

Dan Bobish Vagam Bodjukyan Kotetsu Boku  Tony Bonello