What is the role of the character Zero's enforcer, the hammer man, in John Wick: Chapter 3 - Parabellum?

In John Wick: Chapter 3 - Parabellum, the character Zero is an assassin who is fanatically loyal to the High Table, an organization of crime lords that governs the underworld of assassins. The hammer man, played by Boban Marjanović, is Zero's enforcer, and his role is to provide Zero with backup during his mission to kill John Wick. The hammer man is so named because of his signature weapon, a massive sledgehammer that he wields with deadly force.

The hammer man serves as an intimidating presence and an obstacle for John Wick to overcome during his escape from New York City. He is a formidable opponent due to his size and strength, and his hammer is capable of smashing through concrete walls and floors with ease. In the film's climactic battle, the hammer man faces off against John Wick in a brutal fight that showcases the film's high-octane action sequences.