The shot-stopper, who has been struggling with a shoulder problem of late, says he is in peak physical condition ahead of the game and revealed Bastian Schweinsteiger is too
Manuel Neuer has declared himself fit for Germany's pivotal Group G clash with Portugal in Salvador on Monday.
The Bayern Munich goalkeeper injured his shoulder during the DFB-Pokal final against Borussia Dortmund last month and there had been growing concerns surrounding his availability for his country's World Cup opener.
However, after training at the Arena Fonte Nova on Sunday morning, Neuer insisted that he is 100 per cent ready to face Cristiano Ronaldo and Co.
"I feel well, fit," the 28-year-old shot-stopper told reporters in Salvador. "I have no limitations in my movements whatsoever. I trained fully with everyone else. I feel well, upbeat.
"These injuries are part of football. Nobody wants to be injured but things do happen. It's clear that our leading players have been affected by injuries - Bastian [Schweinsteiger], Philipp [Lahm], Sami [Khedira] and also myself.
"We have not been available for long periods of our World Cup preparations but we were constantly a part of the squad.
"And, in the last few sessions, we all came together. The most important thing now is that every player on the pitch is 100 per cent fit and that we can play our usual game."
Portugal have had their own injury problems, with star man Cristiano Ronaldo struggling with both tendonitis and a thigh problem.
The Real Madrid superstar is expected to start in Salvador and Neuer is well aware of just how significant a threat Ronaldo is to Germany's hopes of of topping the group.
"I don't know if he's fit; we'll see tomorrow [Monday]," the goalkeeper mused.
"But if he's at the top of his form, he's one of the most dangerous players you can face in world football.
"We're facing Portugal and they often have winning streaks in the World Cup;: they were fourth in the last World Cup.
"So, you can see they're a great team. That's something I'd like to stress here.
"It's not the case that we can swagger through the group phase and finish first. As I say, we have three finals to play. This is the first."