Spain has yet to decide who will feature at striker in the World Cup.

Alvaro Morata and Diego Costa finished as Spain's top goal scorers in qualifying at five goals apiece.

Celta Vigo's Iago Aspas, Valencia's Rodrigo and Athletic Bilbao's Aritz Aduriz have also played at center forward.

"Morata is a very good No. 9 that we have and we are very happy with him," Julen Lopetegui told Cadena Ser. "Rodrigo is, too, and so is Aspas. Diego Costa will be, too, once he joins us.

"When the time comes, we will decide who our No. 9 player will be for our first game. It may be that we will not play with the same No. 9 for our second game. We shall see. They all have possibilities to be the starting No. 9 for Spain."