was rousey upset bigger than tyson-douglas?

Not even close. Tyson was a killer. Rousey was a one trick pony. Tyson's loss stopped the world in it's tracks, and that was long before internet and social media took hold.

**** no! Douglas is a seasoned pro with skills, and Tyson was out doing blow and hookers before the fight. Ronda is plain unskilled, and amateurish in every sense of the word. http://atlantablackstar.com/wp-content/uploads/2015/02/130712010219-floydmayweather-071213-single-image-cut.jpg

No. But its the biggest upset in the last 15-years at least. Since Rahman dogged Lewis I would say.

NO, not even close. The only people who claim this are UFC nuthuggers, joe rogan and dana white. even the vast majority of posters on sherdog MMA forums laugh at the comparison