Argentinian champions Boca are River Plate's huge Buenos Aires rivals. The two match up to each other in every possible way. They share a city, they're historically successful and they produce some unbelievable talent. The young Carlos Tevez pictured above is just one example. Other products of Boca include Walter Samuel, Juan Roman Riquelme and a certain Diego Maradona. As is the case with River Plate, check Boca Juniors regularly and you could just find yourself one of the world's biggest prospects for a relatively low transfer fee.