The Vikings won't activate Jefferson (hamstring) from injured reserve Saturday, ruling him out for Sunday's game against Denver, Adam Schefter of ESPN reports.
Jefferson has been a limited participant in practice since the Vikings designated him for return last Wednesday, but the star wideout still isn't ready to return to game action. His next chance to return to action will come Week 12 against the Bears on Nov. 27, after which Minnesota will have a bye. If the team still isn't 100 percent certain about Jefferson's health by Week 12, the Vikings could have additional incentive to keep him off the 53-man roster for another game. In any case, Jordan Addison, K.J. Osborn and Brandon Powell will lead the Vikings' wide receiver room until Jefferson is ready to return.