Germany defender Mats Hummels does not believe his World Cup is over, despite limping out of Monday's 4-0 win over Portugal.
The Borussia Dortmund defender will undergo tests on Tuesday to discover the extent of a thigh injury which saw him replaced by Sampdoria's Shkodran Mustafi.
Hummels scored Germany's second goal in the rout and expects to have the chance to contribute further as the tournament progresses.
"The injury doesn't feel like something which would end my World Cup," Hummels told Sport1 television.
"Maybe it will cost me one game, or maybe none at all. It looked worse than it is. I do have my thigh heavily wrapped, but it's going to be fine. It could have been worse."
However, the expression of Germany's doctor Hans-Wilhelm Muller-Wohlfahrt was not so optimistic as he helped Hummels off the field.
He will perform a scan on Tuesday with Germany coach Joachim Low not sounding too anxious about the results.
"He's just taken a knock to the thigh," Low told ARD television. "I don't expect it to be anything dramatic."
The Germans, one of the World Cup favourites in Brazil, underlined their credentials thanks to a hat-trick from Bayern Munich's Thomas Muller, who last week signed a new five-year contract with his club.
Muller insists personal accolades are not important to him despite the possibility of winning the Golden Boot for a second successive World Cup.
Muller, who scored five goals in South Africa to finish as joint top scorer, said: "Let's remain objective here, this was just the first match.
"We just want to be world champions and if we do that, records may or may not come, but we have other things to focus on.
"A hat-trick at the World Cup doesn't happen every day of course, but I have had a good run at World Cups and I wanted to pick up where I left off.
"I am known for giving my utmost, but no one could have assumed that would happen and I can't say that will happen again in the next match, but I'll certainly try."