Germany boss Joachim Low has declared both Manuel Neuer and Mesut Ozil fit for the champions' 2018 World Cup opener against Mexico on Sunday afternoon.

Neuer missed most of the 2017-18 campaign with a foot injury, but the Bayern Munich goalkeeper played in Germany's pre-tournament friendlies against Austria and Saudi Arabia.

Ozil, meanwhile, had been a doubt for the Mexico clash due to a knee problem. Low, however, has claimed that "all players are fit" for the Group F clash in Moscow.

"Neuer is making a very stable impression on me. The last few weeks he has been very focused, very calm, he has worked hard to come back," Low told reporters at a press conference.

"The two matches have helped him for sure. He looked very self-confident in those matches and in training - it's the Manuel Neuer we know. All players are fit. Mesut Ozil has put in two additional training sessions this week."

Germany are the reigning world champions, having beaten Argentina in the 2014 final.