Honestly, yeah being well rounded is good, cardio is good, but what a fighter needs to be top level is heart/desire. There are a number of guys out there that have amazing skill sets (Travis Lutter, Vitor Belfort) but when push came to shove in there tougher matchups they caved. You can have all the skills in the world but when you're in that cage, on your back, taking hammer fists to the face are you gonna be able to push through it? And I can think of some other fighters that they really dont have the greatest skills (Chris Leben) but they give it their all and can take damage other people cant (or wont) and put on incredibly exciting fights that get them brought back for more fights.
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