UFC 142: "Aldo vs. Mendes" weigh-in event went down today (Jan. 13, 2012) in Rio de Janiero, Brazil, where all 22 competitors tipped the scale to make their respective bouts official for tomorrow's (Jan. 14, 2012) historic event.

In the video above, the first fighter steps on the scale around the 19-minute mark.

UFC featherweight champion Jose Aldo (145) and number one contender Chad Mendes (144), who will main event tomorrow night's pay-per-view broadcast, both came in on point, making their title fight officially official.

The real story, though, is Anthony Johnson, who tipped the scale at a whooping 197-pounds and infuriated his boss, Dana White, who called him a total unprofessional. That's unlike Johnson's opponent, Vitor Belfort, who had no problem making the 186-pound limit. To read more on Johnson missing weight click here.

For complete UFC 142 weigh in results click here and for staredown pics click here.

Ready to rumble yet or what, Maniacs?