Alvaro Morata says there will be no complacency from Spain when they attempt to seal a place in the World Cup round of 16 against Japan after a 1-1 draw with Germany.

Morata came off the bench to score his second goal of the tournament to put La Roja in front at Al Bayt Stadium on Sunday, but substitute Niclas Fullkrug salvaged a point with a late equaliser for Germany.

Group E leaders Spain only need a point against Japan next Thursday to qualify, while Germany must beat Costa Rica and hope Luis Enrique's side can do them a favour.

All four teams can still qualify from the group following Costa Rica's 1-0 win over Japan, with Germany bottom following their shock 2-1 loss to the Samurai Blue on Wednesday.

Striker Morata stressed there is no chance Spain will take Japan lightly at Khalifa International Stadium.

"Japan is a tough team, they run a lot, they are good tactically. It's another tough game, it's a World Cup." he said.

The Atletico Madrid frontman says he has no problem with being among the substitutes again after also finding the back of the net in a 7-0 rout of Costa Rica.

"We are on the bench for this [to score]. Germany are a great team, this match could have been a semi-final or final in the World Cup," he said.

"It's the same [starting of being a substitute], the most important thing is to win. They scored an amazing goal, so we didn't have the victory, but we keep training and pushing with good vibes and positivity."

Morata has scored eight goals at European Championships and World Cups, at least double the amount of any other player for Spain since 2016.