The Packers signed Prather to a one-year deal Thursday, Ian Rapoport of NFL Network reports.
The 2025 seventh-round pick of the Bills was cut with an injury settlement last August and eventually landed with the Louisville Kings of the UFL, for which he recorded a 9-148-0 line over nine regular-season games in what turned out to be a championship campaign for the franchise. Prather will now have a chance to work his way back onto an NFL roster, although he faces a crowded wide-receiver depth chart in Green Bay.