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Some say it's a game of strategy and skill unequalled in modern sport, others say it's just men running around in silly hats.
If you don't know much about the sport but are planning (or being forced) to watch the game don't worry.
Here are some handy phrases so you can sound just like an expert.
Let's start with the basics…
Offence and Defence
Richard Sherman tackling James Stark
Each team is split into two units; an attacking one and a defensive one.
The team which has control of the ball will have their offence (attacking players) on the pitch and the team without it will have their defence (defensive players) on.
This is true for the majority of the game except when one team has chosen to kick the ball. The 'special teams' come on for that.
Top tip: Make sure you pronounce defence like this: "Dee-fence".
Examples you could use: "New England's offence relies a lot on Tom Brady to be successful don't you think?" or "Seattle's defence is nasty (meaning good)".