NBC Sports Bay Area's Donte Whitner joins Kerry & Dieter show to preview week 13's matchup: 49ers vs Bills 

NBC Sports Bay Area's Donte Whitner joins Kerry &amp; Dieter show to preview week 13's matchup: 49ers vs Bills

Catch Dirty Work with Adam Copeland & Derek Papa every weekday from 2 p.m. - 6 p.m. on KNBR 104.5 / 680.

Catch Dirty Work with Adam Copeland &amp; Derek Papa every weekday from 2 p.m. - 6 p.m. on KNBR 104.5 / 680.

Dirty Work

Listen to Dirty Work with Adam Copeland and Derek Papa only on KNBR.

Listen to Dirty Work with Adam Copeland and Derek Papa only on KNBR.

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