It is a tactical dilemma that most coaches in the world would die for. Who to pick out of Gonzalo Higuain or Robin Van Persie to lead the attack? Is Javier Mascherano or Wesley Sneijder the most appropriate midfield general? And how to accommodate the brilliance of Lionel Messi and Arjen Robben in the same team?
With Argentina's World Cup semi-final against the Netherlands just around the corner, fans can look forward to seeing some of the world's finest players in action, from both sides of the pitch. But how would a starting XI composed of the pick of each nation look on paper?
Taking into account solely World Cup form up to and including the quarter-final stage, here is the best combined line-up of the two teams who on Wednesday will be fighting for a place in the final.