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

KNBR is the THE Sports Leader and official radio home of the San Francisco Giants and San Francisco 49ers!

KNBR Podcast

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.

Hour 4: Kerry and Dieter discuss the bad news surrounding the 49ers and talk to John Dickinson.

Hour 4: Kerry and Dieter discuss the bad news surrounding the 49ers and talk to John Dickinson.