The Patriots sufficiently disliked the the playing surface they’d installed in May to remove it after two preseason games, one practice. and one regular-season game. The NFL Players Association doesn’t like what they replaced it with.

“Player Health and Safety remains a top priority of the NFLPA and we sent our field expert to Gillette Stadium to evaluate the newly installed FieldTurf,” the NFLPA said in a statement issued to PFT. “The Gmax numbers that reflect surface hardness came back extremely low, indicating a very soft field; however, the testing results passed the NFL Mandatory Practices for field surface testing.”

The NFLPA had specific advice for players who will be performing on that surface.