The 49ers' record-setting investment in left tackle Trent Williams already is paying off.
Earlier this offseason, San Francisco signed the star offensive lineman to a six-year, $138.06 million contract extension. Notoriously one of the best left tackles in the game, Williams maintained his reputation with a dominant performance against the Detroit Lions in Week 1.
It should come as no surprise that Williams graded out so high after watching him bully Lions defensive linemen all afternoon.
The 49ers rushed for only 131 yards on the ground, which for them, is a modest number. Leaning more on the passing game, it was Williams' protection of Garoppolo (17-of-25 passing, 314 yards, 1 TD, 1 sack) that proved to be the most important.