England coach Martin Johnson breaks down some of the similarities and differences between rugby union and American football, ahead of Super Bowl XLV on Monday.

NFL expert Neil Reynolds gives his thoughts on who will win the big game here .

You can see Super Bowl: The Biggest Show on Earth on Saturday 5 February from 1300 GMT on BBC ONE and the BBC Sport website (UK users only).

Super Bowl XLV is LIVE on Sunday 6 February from 2255 GMT on BBC ONE and the BBC Sport website (UK users only).