a 20-18 victory over the Welsh with Damien Chouly's try in the 100th minute of the game, converted by Camille Lopez.
That followed an extraordinary sequence in which France hammered away at the Welsh line, earning a succession of penalties from their scrum but failing to score.
They finally did so through replacement back row Chouly, and Gourdon - who was a stand-out in his first Championship - was impressed by the concentration of the team and the front row in particular.
He explained: "We're happy that we were able to go and get the win despite all these mistakes. We started really well but then we faded. We gave up too much ball.
"Thankfully we had some good props and a dominant scrum. They were defending really well and we should have played it tighter. We didn't do it much in the first half and it cost us.
"We were good in the scrum and we focused on that area at the end of the game, until it paid off. We had to keep our cool. We were able to keep the ball and score the try.
"We had to be concentrated, we just kept thinking about our scrum, despite everything that was going on with the props. The key was to win."
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