Another round of replacement refs? Dirty Work tackles NFL offseason storylines & more on SFG lineup

Dirty Work Hour 3 is all about the Giants' recent lineup changes and the unconventional approach of new manager Tony Vitello. They're joined by Matt Maiocco, a 49ers insider, who shares the latest on Trent Williams' potential return and the team's negotiations with the NFL. The guys also touch on the possibility of replacement referees in the NFL and the 49ers' upcoming international games in Australia and Mexico Cit