How much blame is on Kyle Shanahan?
Brock Purdy's worst game as a Niner?
Brandon Aiyuk suffers ACL injury.
Nick Sorenson's best game as 49ers' DC?
Rookie Ricky Pearsall returns.

<description>&lt;p&gt;How much blame is on Kyle Shanahan?&lt;/p&gt;
&lt;p&gt;Brock Purdy's worst game as a Niner?&lt;/p&gt;
&lt;p&gt;Brandon Aiyuk suffers ACL injury.&lt;/p&gt;
&lt;p&gt;Nick Sorenson's best game as 49ers' DC?&lt;/p&gt;
&lt;p&gt;Rookie Ricky Pearsall returns.&lt;/p&gt;
</description>

Bleav in 49ers

Instant Reaction: 49ers drop Super Bowl rematch vs. Chiefs in ugly fashion

Instant Reaction: 49ers drop Super Bowl rematch vs. Chiefs in ugly fashion

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