Blitz describes sending extra defenders to rush the quarterback. Defenses use blitzes to create pressure quickly. This tactic matters because pressure forces mistakes. Coordinators disguise blitz looks pre-snap. Timing and angles create free rushers. However, blitzing risks coverage gaps. Teams balance aggression with protection. Players communicate responsibilities clearly. Practice sharpens execution. For example, a linebacker blitzes through the A gap to sack the quarterback.