Charles Oliveira pulls off first calf slicer submission in Octagon history

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"I didn't create that, my teacher taught me that. The MMA world has a lot of submissions like that and I train hard for that in this position. I started with a heel hook and he defended, I went to the knee bar and he defended and then I got the calf lock. I never did this before in tournaments but I train every day this position in the gym."