Sergio Ramos: Spain have to change the current feeling FIFA World Cup 2018 - Spain vs Morocco He asked the team to reflect

Spain were not content with their performance despite securing a 2-2 draw with Morocco to secure top spot in World Cup Group B.

Morocco held the lead until the dying moments as Iago Aspas scored a late equaliser, and Sergio Ramos acknowledged that it was not plain sailing.

"There were some uncomfortable minutes, it was one of those games where the result means you're almost more dependent on other things," the captain reflected.

"We progress first in the group, which was the aim, although the game wasn't good.

"It's a night to self-criticise from the first to the last, we have to change the current feeling, although we don't have to see it so darkly."

This includes the defence, where La Roja once again looked vulnerable and fragile, with Ramos himself partly at fault for the Morocco opener.

"It's true that when you play with a national team that causes so much offensive threat, you have to be more careful, that makes the difference," he insisted.

"You have to be more solid, there's no margin for error.

"Now any mistake eliminates you, we have to be more capable and serious."

Next up for the 2010 champions are World Cup hosts Russia in the last 16, a challenge which Ramos believes will pose an obstacle.

"Now it's difficult, hopefully we can play brilliantly against Russia," he said.

"They come playing at a high level, hopefully we can play our hierarchy.

"We hope to show it as soon as possible."

That chance could come on Sunday, with the match taking place in Moscow at 16:00 CET.