Updated

Earlier this offseason, NFL Insider Mike Sando ranked and separated all 32 quarterbacks into tiers.

Using those rankings, he then broke down the easiest and hardest schedules based on those ratings.

And it turns out the 49ers have the fourth-toughest quarterback schedule on the docket in 2015: "The home schedule is tough: Rodgers, Wilson, Flacco, Ryan and Palmer all pay a visit to Levi's Stadium, where the 49ers were 4-4 last season."

That slate is daunting considering the defensive personnel the 49ers lost this offseason.

And three of those quarterbacks - Rodgers, Wilson and Flacco - will be at Levi's during a four-week stretch in October.

(h/t ESPN Insider)