Argentina–Uruguay football rivalry

The Argentina–Uruguay football rivalry, also known as Río de la Plata Derby (Clásico del Rio de la Plata in Spanish) is a highly competitive sports rivalry that exists between the Argentine and Uruguayan national football teams and their respective set of fans. Considered by football journalists and fans alike as one of the most important rivalries in the sport, the derby is also the most played in football history.

Source: Wikipedia — Argentina–Uruguay football rivalry (CC BY-SA 4.0)