USA Today names seven NFL trades as the worst ever, led by Herschel Walker from Cowboys to Vikings, a blockbuster that fueled a Dallas dynasty while draining Minnesota’s future. Also highlighted: Favre to Green Bay, Leaf to San Diego, Trent Richardson to Cleveland, Russell Wilson to Denver, Watson to Cleveland, and Brown to Philadelphia.

For fantasy managers, these moves show how draft capital, quarterback shifts, and position changes ripple for years, reweighting value, waivers, and dynasty timelines long after the initial splash fades.