Germany are facing a second consecutive World Cup first-round exit when they take on Spain on Sunday with coach Hansi Flick working overtime to pick his players up off the floor after their shock 2-1 loss to Japan in their Group E opener.

The four-time champions suffered their earliest tournament exit in more than 80 years in 2018 when they crashed out in the first round and now face a similar scenario in Qatar.

Holding a 1-0 lead after a dominant first half, Germany crumbled after the break, allowing Japan to score twice late in the game due to a string of individual mistakes, including from central defender Niklas Suele for the second goal.

While most of the discussion prior to their first game had focused on whether Flick would deploy a natural centre forward like Niclas Fuellkrug from the start, Germany’s backline has long been a cause for concern and recent results highlight the need for immediate improvement.

They have conceded six goals in their last four internationals but now have to find a way to shut out Spain, who fired seven past Costa Rica in their group opener.

Germany’s players, however, must not only process their first ever loss to Japan, they are also under fire back home for their handling of a diversity armband affair after world soccer body FIFA threatened sanctions if they wore it.

Germany backed down despite a promise to wear it only 48 hours prior to their game.

Spain, on the other had, have none of the pressure their European counterparts are feeling.

After years of being expected to deliver titles, Spain have entered the tournament with a lighter load on their shoulders under coach Luis Enrique and have already set records.

Barcelona’s 18-year-old Gavi became the country's youngest World Cup player, and the youngest to score since Brazil great Pele in 1958 after netting in their 7-0 win over Costa Rica.

They were not among a small group of pre-tournament favourites that included Brazil, Argentina and France among others, but their win over Costa Rica will have whet their appetite for more.

As for the line-up, Luis Enrique has promised changes.

“I don’t know who is going to play, but surely we won’t repeat the lineup,” he said. “We will not play seven games with 11. I'm sure I'll change.”