They opened by absolutely throwing blows in the middle of the cage. As she always does, Rousey used this as a way to clinch up with McMann and put her against the fence. Instead of a takedown attempt, though, she disengaged and went with punches.
Then, she attempted to set up a throw and it didn't work. Not this first time, at least.
Rousey started using elbows in the clinch. Then, out of nowhere, Rousey landed a big knee to the body and McMann dropped to the floor. Referee Herb Dean came in and stopped the bout.