Receiver Adam Thielen wasn't expected to play Thursday night against the Steelers after suffering a high ankle sprain just a few days ago, and the Vikings made it official on Wednesday.
Thielen and left tackle Christian Darrisaw were ruled out on the team's final injury report before the primetime kickoff. Running back Dalvin Cook (shoulder) is listed questionable after two limited practices this week. Coach Mike Zimmer indicated Oli Udoh would remain at left tackle if Darrisaw still couldn't play after missing the Lions loss with a right ankle injury suffered in San Francisco.
K.J. Osborn is expected to start for Thielen.