Spain's World Cup preparations will conclude on Saturday, with Vicente del Bosque's world champions set to take on El Salvador in an international friendly in Washington D.C.
After last week's 2-0 victory over Bolivia in Seville, Saturday's World Cup tune-up represents the final opportunity for Del Bosque to experiment with all of the options at his disposal.
As was seen at Ramon Sanchez Pizjuan Stadium last weekend, the manager will likely explore the cohesive capacity of many of his peripheral players. Last time out, it was the use of Javi Martinez, Alberto Moreno and Ander Iturraspe that stood out.
So who will it be on Saturday? What should Del Bosque test against El Salvador as Spain's focus narrows in on their World Cup defence?
Across the following slides, we examine five things the manager should try in the team's last warm-up match in Washington DC.