49ers Roster Rundown! Fred Warner and Dre Greenlaw Reunite at Linebacker

Rob Lowder and Kyle Posey near the end of their 49ers Roster Rundown series with the reunion of All-Pro Fred and Big-Play Dre. Will the returns of Fred Warner (from injury) and Dre Greenlaw (from the Broncos) lead the 49ers defense to prior heights? Who wins the third spot behind them? Let's discuss.