The Steelers came up with a unique way to show solidarity and send a message during the national anthem ... with players holding a sign saying, "Steelers Against Racism" before Monday Night Football.
There have been many different approaches throughout the league during the opening weekend ... with some teams electing to stay in the locker rooms while other teams had players kneel, lock arms or show other ways to demonstrate before games.
The Steelers revealed their decision before facing off with the NY Giants on Monday ... holding the long banner, which listed each player's hometowns.
The Giants were also present for the anthem, with roughly one-third of the team electing to kneel.
The social justice demonstrations come after several players -- including Odell Beckham, Patrick Mahomes, Saquon Barkley and more -- called for NFL commish Roger Goodell to admit the league was wrong in silencing players like Colin Kaepernick.