Getting doctor to stop a fight
Select a good fighter. Choose a created fighter with no stats as your opponent in Exhibition mode under the Beginner difficulty setting. Set the number of rounds to five. When the match starts, clinch with your opponent. Get the clinch to a single collar tie so that you only have one hand on them with their head up. Try to move them up against the cage. Then, repeatedly hit them with weak punches. You will not rock them, however the referee should eventually stop the match for the doctor to check on your opponent. They should say your opponent can still fight. Clinch with your opponent again and keep punching them. The doctor will eventually stop the fight. Note: This can also be done from rubber guard.