Saudi Arabia coach Marcos Paqueta praised his players after the 4-0 drubbing by Ukraine, admitting it had been a "difficult" game for them.
"They tried and tried the whole way," he said."When you give all your effort, you're satisfied with what you've done.
"We will have to concentrate on the match against Spain. We will get all the players involved and take care of the speed of the Spanish team."
The Saudis need to beat Spain to stand any chance of reaching the next stage.