In August, two men were charged in the beating of a black man during a rally of white nationalists in Charlottesville, Va., in an assault that was captured on video and widely shared.

On Monday, a local magistrate in Charlottesville issued an arrest warrant for the man who was beaten, accusing him of the same felony offense.

DeAndre Harris, 20, was beaten with a metal pipe and wooden boards by at least six men inside a parking garage on Aug. 12, and efforts to identify his assailants became a rallying cry on social media in the days after the “Unite the Right” rally. At least two men were identified, and they were charged with malicious wounding: Alex Michael Ramos, 33; and Daniel P. Borden, 18.

But right-wing critics portrayed Mr. Harris as the instigator, a claim he and his lawyer have strongly denied. The warrant issued on Monday stems from a statement given by one of Mr. Harris’s unnamed assailants, referred to in a police statement as “the victim,” to the authorities.