Yes, this is a must-win game for San Francisco — you don’t get to lose back-to-back games twice in the first half of the season and continue to fancy yourself a Super Bowl contender, much less a favorite (as the Niners recently were). You don’t get to lose to these Cowboys — my goodness, are they awful — and pretend you’re any good yourself.

Here is why San Francisco 49ers QB Brock Purdy earned the nickname "Mr. Irrelevant" and what it means for his career.

Brock Purdy is having a strange season. When he faces zone coverage, he's the best quarterback in the NFL. But when he faces man-to-man coverage, he's the worst starting quarterback in the league. Why does he dominate versus one and struggle vs.