The cardio conditioning that Parkour gives is great, and I do it so that I don't have to just "run." Cyril doesn't have the martial arts skill to hang with the UFCs best. He could probably fight in the octagon, but not with the better fighters.
I have a thread running in the MMA training section if you want to check it out.
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Barnett - Toquinho -Werdum - "Nurmie"
Z. Gurgel - Morango - Rocha - Tiequan