In Week 2 of the preseason, the NFL pitted the Rams against the Raiders, and neither team wanted to play people or reveal strategy that might be exploited in Monday’s opener, just a few weeks later. The next game, neither front-line tackle was available — one was resting, the other had tweaked an ankle — so McVay determined the potential risk of injury to Goff was too great. In the final tuneup, the Rams followed standard league protocol by resting all the starters.

Source: Los Angeles Times September 10, 2018 00:10 UTC