What is behind the rivalry between River Plate and Boca Juniors?

IMAGE: General view of River Plate's fans inside the stadium before the match. Photograph: Marcos Brindicci/Reuters Argentine clubs River Plate and Boca Juniors will contest the second leg of......

PIX: River Plate crowned champions in Madrid

IMAGE: The River Plate team celebrate with the Copa Libertadores Trophy following their victory in the second leg of the final match against Boca Juniors at Estadio Santiago Bernabeu in Madrid,......

Boca Juniors unveil returning idol Carlos Tevez

Argentina's Carlos Tevez smiles during his presentation as Boca Juniors' new player at La Bombonera stadium in Buenos Aires. Photograph: Marcos Brindicci/Reuters Carlos Tevez was officially......

Tevez scores but Boca Juniors lose at home

Boca Juniors' Carlos Tevez, right, embraces teammates. Photograph: Marcos Brindicci/Reuters Carlos Tevez scored his first goal for Boca Juniors at La Bombonera in more than a decade but it was......

Real Madrid sign Argentine teenager on 6-year deal

IMAGE: Franco Mastantuono will join Real Madrid on August 14. Photograph: Agustin Marcarian/Reuters Real Madrid have signed 17-year-old midfielder Franco Mastantuono from Argentine side River......