Comment by chrisherring

Getting a pro male fighter in an armbar would be unlikely for Rousey however if she got in position I wouldn't bet against her. An armbar works on the principle of leverage, in this case the bicep muscle vs the same muscles used in a deadlift. If Rousey had a male fighter in an armbar the strength difference is not going to be the deciding factor. Also all fighters know how to defend an armbar, RNC, triangle etc yet they still tap to them.