Possible Clues:

• What a blow that the wound is not the lower one!
• A vertical punch to chin delivered by boxer
• Blow from below
• It's a blow - one must take it on the chin
• Blow from fist to chin
• That may blow high to get your opponent low
• Blow to chin
• Hit by sportsman may provide superior score
• Short-arm blow to opponent's chin
• Half orchestral section's input contrived to blow