(Undated)  --  The Rams, Chargers and 49ers are each making their preseason debut this Saturday.  The Rams and Chargers take on one another at SoFi Stadium, marking the first ever game that fans will be allowed at for the multi-billion dollar facility.  Meanwhile, the Niners will also be home as they host the Chiefs in Santa Clara.  The three teams will only play three preseason games as the NFL has expanded the regular season to 17 games.