49ers fans had a lot to say following the team's Sin City beatdown on Sunday. It's just a preseason game, so there's no need to worry. But there's still plenty to talk about.

Marc Adams answers fans' questions in the latest 49ers Webzone Mailbag. 

- Any update on Nick Bosa? 

- Do preseason games matter? 

- Did anyone on the 49ers O-line look good?

- And more Niners questions answered!

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