Defensive Blind Screen?

[Jurassic Referee]

Originally Posted by Snaqwells

By rule, as long as the screened player stops or attempts to stop upon contact, the contact is to be ruled incidental. The screener is to expect contact, and the contact may be severe.

+1

The intent of the defender setting the screen has been met. Whether either or both player subsequently goes down isn't relevant as long as the criteria for a legal screen were met.

You need illegal contact to have a foul.