Germany set to be without Hummels against Sweden

Germany are likely to be without centre-back Mats Hummels in Saturday's crunch World Cup clash against Sweden, coach Joachim Loew said.

"Mats Hummels will probably not be able to play. He somehow dislodged a vertebra in his neck yesterday and has not improved," Loew said at Friday's pre-game press conference.

"There is still time, but when things like that happen you don't generally improve overnight."

Chelsea's Antonio Ruediger would be the likely replacement for Hummels alongside Jerome Boateng in the heart of the German defence.

The defending world champions come into Saturday's game in Sochi with their hopes of reaching the last 16 hanging by a thread after losing their opening match 1-0 against Mexico.

A defeat on Saturday could eliminate Loew's side, depending on the result of the day's other Group F game between Mexico and South Korea.