Dimitri Payet has hailed France's "new level" of defence as the Euro 2016 hosts moved into the round of 16 of the competition.
France topped Group A with seven points after beating Romania and Albania, while playing out a scoreless draw with Switzerland.
The Euro 2000 winners went all three games without conceding a goal from open play, while three of their four goals scored have come in the 89th minute or later.
Payet - scorer of two of those goals - believes the side's all-round defensive effort has been the reason for their solid displays so far.
"We've got a good defence and it's not just the back four. We've reached a new level in defence," the West Ham star said on Monday.
"These defensive efforts weigh on our freshness, but I'd rather not concede a goal and score one in the 90th minute than concede two or three and have to go and score three or four.
"Because there is not a big gap between the teams, it's hard to score three or more goals."
After topping the group, France will play the third-placed team from either Group C, D or E in Lyon on June 26.
"Because of that, we could not always play the way we wanted. But we know that in Lyon it will be better," the 29-year-old added.