If Seattle are going to have any chance of winning the 2014 Super Bowl on Sunday then they're going to have to do something that no-one else has managed yet, stop Peyton Manning. 

Luckily for them, they have just the right guys to do it. 

The Seahawks fearsome secondary have made mincemeat of opposition offenses all season and it doesn't look like stopping any time soon. 

Richard Sherman, Earl Thomas III and Kam Chancellor all have different skill sets, but they combine to form a team so awesome they have their own nickname....

The Legion of Boom.

Here we'll break them down in to their individual parts. 

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