France coach Didier Deschamps has warned Ukraine that his side are fully prepared to mount a comeback at the Stade de France on Tuesday.
Les Bleus crashed to a 2-0 defeat in the first leg of their World Cup 2014 play-off on Friday and now stand on the brink of failing to make the tournament.
However, Deschamps says his troops have been training more intensively since the loss in Kiev ahead of the return fixture.
"Yes, it seems [that they have been more intense] to me," the 45-year-old told reporters.
"It's logical that there was a lot of disappointment but there was no time to dwell on it. We must switch to what is awaiting us tomorrow.
"It's possible. The risk is there, but this is an extraordinary game."
Deschamps went on to say that he has not reconsidered his striking options for the clash in Saint-Denis, despite Olivier Giroud and Karim Benzema both drawing blanks in Ukraine.
"I'm not in that mindset," he continued. "It's a possibility. We'll be ready, but the plan - who starts, who returns, can also be decided at the time."
The former Marseille and Juventus coach also asked his players to target an early goal but not to grow frustrated if they cannot convert their chances.
"Obviously the ideal scenario is to score quickly, but there will not be any impatience. So we must scale back the madness and find a balance.
"And I don't expect Ukraine to defend, so we will have to make efforts to attack and defend too."