It's no shocker that, when Mostert was asked to identify his favorite game, that one was at the top of his list.
"A lot of people didn't really know who I was, at the time," Mostert said, "just coming in and sprinkling a couple of touchdowns and a couple of yards here and there. But I wanted to show everyone what I was capable of, once I got the opportunity, and I was able to do that.
"That game right there just really solidified who I am as a runner, and who I am as a player. That day, I was in my zone, and I couldn't be stopped."
Mostert, 28, carried the football 137 times for 772 yards with eight rushing touchdowns while adding 14 receptions for 180 yards with two receiving touchdowns through 16 games in 2019.
Mostert leads a 49ers running back group that traded away Matt Breida but still includes Tevin Coleman, Jerick McKinnon, and Jeff Wilson Jr.