When the Super Bowl hits the Las Vegas Strip in February, it will mark the crowning moment in a remarkable civic makeover that has seen Sin City evolve from gambling hub to sporting capital.

Less than a decade ago, Las Vegas was a no-go zone for major professional sports leagues over fears of having their products tainted by the stain of betting.

But today visitors are just as likely to come to the gambling oasis to attend a sporting event as they are to take a seat at the poker or roulette tables.