The Kansas City Chiefs chase a historic hat-trick of Super Bowl titles when they take on the Philadelphia Eagles here Sunday as New Orleans hosts the NFL showpiece just five weeks after a deadly attack in the city's party district.
In a first for a sitting US President, Donald Trump will be among an array of VIPs and celebrities in a sell-out crowd of around 74,000 who will be packed into the Caesars Superdome for the biggest annual event in the American sporting calendar.
