Packers playoff preview: Where are the 49ers vulnerable?

The 49ers have clear weaknesses the Packers must exploit in the NFC Divisional Round on Saturday night.

The underdog San Francisco 49ers are an ascending football team capable of poking and prodding at potential weaknesses and challenging the top-seeded Green Bay Packers during Saturday night’s NFC Divisional Round showdown at Lambeau Field.

But the 49ers are also vulnerable in some key areas that could make all the difference in a playoff game.

Here’s a closer look at where Kyle Shanahan’s team is exploitable and how the 49ers’ upset bid could crumble at the hands of the Packers at Lambeau Field.