in all honesty no matter how much Mir talks it is solely for himself to fire him up. Other than experience Mir has nothing on Lesnar. And Mir only has more experince in MMA. Lesnar had his college years and even though the WWE is fake to a point it does take a ton of skill, athleticism and skill to pull off a majority of those moves. A fake hit is harder to do than a real hit. It takes control. Physcially Lesnar is just to imposing for Mir. He has that competition mindset. The WWE gave him the experience of performing in front of huge crowds. That anger he displayed after the second fight was just emotion, the same emotion he went into the fight with. He truly does not like Mir. you have to have that mindset. Lesnar has it to get him fired up to fight. Mir does it to try and convince himself and others he is not afraid.