No matter what the Vikings it was never realistic that Adrian Peterson would be back this week, but here is the update from ESPN’s Josina Anderson.
#Vikings RB Adrian Peterson told me he's planning to have surgery on Thurs to repair his meniscus. He's "doing it with faith and optimism."
— JosinaAnderson (@JosinaAnderson) September 21, 2016
Peterson has what is known as "bucket handle tear." I'm told that's a minm of 3-4 months out & up 6months usually. Again Peterson has faith.
— JosinaAnderson (@JosinaAnderson) September 21, 2016
This is likely a season ending surgery no matter how much faith Adrian Peterson has, but we will see, a lot will depend on if Vikings are in playoff hunt towards end of the year.