Bastian Schweinsteiger insists he is feeling fit and healthy despite only making appearances as a substitute in Germany's Euro 2016 campaign, reports Manchester Evening News.
The Manchester United midfielder has come from the bench in three out of the four games the World Champions have played so far, and even scored in their 2-0 opening game win over Ukraine.
#GER back in training as Bastian Schweinsteiger declares himself fit to start quarter-final https://t.co/bpjeyobTGW pic.twitter.com/dNDzlNqYCe
Questions have been raised over the 31-year-old's fitness after an injury-plagued season led to the former Bayern Munich captain making just four appearances in the 2015/16 campaign.
However, Schweinsteiger is adamant that he has now returned to full fitness following a persistent knee injury, and insists that he can reclaim his starting place for Germany.
He "?said: "Of course, I could have played more against Northern Ireland or the other games, but it's the decision of the coach [Joachim Low].
"I feel good, healthy and fit. You have to remember that I didn't play for many weeks, my rhythm is not quite perfect."
After a convincing 3-0 win against Slovakia in the last round, Germany will now face either Italy or Spain in the quarter-finals.
Joachim Low's men are yet to concede in any of their four matches but, as Schweinsteiger admits, their run of games might not be considered the most challenging.
He said: "We haven't played the biggest teams in Ukraine, Northern Ireland and Slovakia. Poland are a good team, but you know what I mean.
"At the World Cup, we perhaps had more difficult matches. But I do think that you have to be at the very best to beat a team like Spain or Italy."