Watch Green Bay Packers vs San Francisco 49ers Live Stream. Green Bay Packers vs San Francisco 49ers is one of the big afternoon games in the NFL 2013 Week 1 schedule with the 49ers looking to maintain their good recent record against the Packers. In the opener of the 2013 NFL season, the Denver Broncos got revenge on the Baltimore Ravens for last year’s playoff loss. On Sunday, the Green Bay Packers will try to do the same thing to the San Francisco 49ers.