49ers' radio color commentator Tim Ryan joins Dirty Work to talk about the return of Brock Purdy as starting quarterback in advance of the 49ers' road tilt against the Cardinals.

49ers' radio color commentator Tim Ryan joins Dirty Work to talk about the return of Brock Purdy as starting quarterback in advance of the 49ers' road tilt against the Cardinals.

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.

Dirty Work with Copes & D Pop

11-14 Tim Ryan joins Dirty Work to talk about the return of Brock Purdy as starting quarterback in advance of the 49ers' road tilt against the Cardinals.