Alexandre Dumoulin is desperately trying to make up for lost time as he aims to make France's World Cup squad.
The Racing 92 centre impressed in his first two games for France last November, but tendinitis then saw him sidelined for several months, missing the Six Nations as a result.
He returned for Racing's end of season and did enough to earn a spot in France's preliminary World Cup squad, but with five players still to be cut after the two warm-up games with England, Dumoulin knows he has it all still to do.
The centre spots are particularly competitive, with five players battling for a maximum of four spots, with Dumoulin likely in competition with Gaël Fickou and Rémi Lamerat for two places.
But after his long injury, Dumoulin is just delighted to have been given a shot to show what he can do.
"It was hard mentally to tell myself that I had to start over," he told Rugbyrama.
"We're all professionals though and injuries are part of the game. For me, unfortunately it's taken a while. The main thing was that I came back and I'm on the list of 36.
"It's up to me to show I have the ability to play for this French team, to prove that I'm ready physically, and to show in the two games that I deserve to be on the 31-man list.
"The coaches will analyse what they've seen in the training camps but the most important thing for me will be the two Tests against England.
"If I play for 20 minutes, I have to give it everything, if it's a half, same, and if it's the whole game, even more!
"The aim is to give it everything and to have no regrets."