As the annual Super Bowl looms, it's fair to say that the worlds of the NFL and royalty hardly ever collide.
Prince Harry and Princess Eugenie did attend last year's event in Inglewood, California, but no members of the Firm are known to be massive American football fans.
However, there was once speculation that Harry's late mother Princess Diana was a secret supporter of one of the teams up for this year's Super Bowl - and it was all down to one of her iconic jackets.
