As the rest of Rapoport's tweet went on say, there are some things to work out first. Johnson is also the first pick of the San Diego Fleet of the Alliance of American Football, so he will at least temporarily need to get out of that to back up Sanchez.
WAS QB Mark Sanchez - Week 14 Fantasy Football Outlook
Week 14 vs. New York Giants
My, how the Redskins have fallen in 2018, potentially going from first to the worst team in the division by the end of the season, due in large part to so many notable injuries. Washington is now on its third quarterback in Mark Sanchez, and have an implied team total of fewer than 20 points this week, bottom five in the league. New York also ranks third in aFPA to QBs. You don't need us to tell you not to start Mark Sanchez, but there you go anyway.