One Piece Episode 402

[RyougaZell]

I never said Zoro should have sliced the clone with a ranged attack. That's why I said Luffy and Sanji should have distracted the robot (who never even seemed inclined to move much), and Zoro would have sneaked behind him and cut him in half. Because he can cut everything and nothing now.

An attack from the back is a shame for a Swordsman.
Remember Zoro's fight with Mihawk. He said that a cut to the back is very shameful. That same pride applies when they fight. He's never cut anyone on the back through all the series. He is a direct fighter, even if the battle is hopeless.

[chambers]

all the supernovas are really cool i hope they arent killed off now. I think it would be really nice if instead of some shitty filler episodes they showed us a part of the journey of one of the other supernovas crews, scratch man apoo imho seems very cool and also the giant angel guy should have some interesting backstory i think. In time i guess we will hear drakes as its more than likley an important story element. I wonder how far eustaces powers go? if he realizes hes fighting a machine can he rip it to pieces with his fruit?

[DarthEnderX]

An attack from the back is a shame for a Swordsman.
Remember Zoro's fight with Mihawk. He said that a cut to the back is very shameful. That same pride applies when they fight. He's never cut anyone on the back through all the series. He is a direct fighter, even if the battle is hopeless.

I think you have that backwards. When he says that, he doesn't mean that he should never attack an enemy from the back, he means that he should never turn his back on his enemy, as in, never turn to run away.

Zoro will never turn his back to the enemy, because it would make him dishonorable, but if his enemy were to do it, that's his enemies dishonor, not his.