Yo MC, I'm sorry man. I wasn't familiar with your game.
But to author, you're good at thinking up words, dialogue and story. But you're terrible at action scene. That knife block is so terrible. The man was swinging with the force of his shoulder, so meeting it head on is the quickest way to lose your arm.
In that situation, it's better to either kick the hand up, or just block his motion since the man is over-extending his shoulder in one direction.