Suddenly Eyeshield.
I suppose I should be more surprised by you, of all people, reading Eyeshield21.
In any case though, Death March's relevance didn't stick for long. Further to the story, it was just about superhuman doing super things or naturally-talented/gifted people showcasing talents. We all know they won because of Hiruma.
Why are you discrediting a guy who managed to stun someone else, much bulkier to boot, with only sideway chop to the hand.
Yeah, I just think it's kinda unfortunate that the only relevant training they talk about is only Death March, which didn't stay long because you know - ahem, talents and super-skills. When it comes to sport, it mostly falls on, and emphasizes, constant repetitive training and conditioning, not talking about how your opponents can lift a building with his dick tied.