Fury (aka The Killing Game)

Source logline

A haunted drifter finds himself forced into the savage world of a modern gladiatorial arena, where men fight to the death for the entertainment of the online masses and the profit of a sadistic capitalist. The drifter’s defiance to willingly execute his beaten opponents per the “rules” of the game, makes him the target of resident executioner and psychopath, who makes it his personal mission to destroy the man.