Chickens, arson, and a stadium stampede that killed 71: Inside The Superclasico, the fiercest derby in world soccer

• Insider has been counting down and detailing the 10 fiercest rivalries in world soccer.
• In first place is River Plate versus Boca Juniors, also known as "The Superclasico."
• Read below about its history and why Insider has named it number one of its list.
• Keep up to date with the series here.
• Visit Insider's homepage for more stories.

Over the past few weeks, Insider has been counting down and detailing the 10 fiercest soccer derbies across the world.

We've crossed the globe, from Serbia to Scotland and from Rome to the Ruhr, over the last nine editions, and for our final hurrah we travel to Buenos Aires.

Here, in the Argentine capital, lies the biggest and baddest rivalry in world soccer — the Superclasico, River Plate versus Boca Juniors.