New England Patriots receivers coach Todd Downing revealed the biggest lesson veteran wideout Stefon Diggs currently faces.

Patriots' head coach Mike Vrabel provided a cryptic response when asked why Stefon Diggs didn't play in Friday's preseason ...

Patriots wide receiver Stefon Diggs is serving as a mentor for Kyle Williams and other youngsters in the room.

Diggs appeared to be on shaky footing with the Patriots in May, when he was filmed flashing a pink substance on a party boat.