Wallabies warrior George Gregan will lead Australia in his record-breaking Test rugby appearance against France on the weekend motivated purely by the on-field battle.

Gregan has been selected to play his 115th Test for Australia in a career that began as a fresh-faced 21-year-old against Italy at Ballymore in 1994.

He revealed at the time he was satisfied to have gained just the one cap.

Now he'll eclipse English prop Justin Leonard's world record mark of 114 Tests for his country in Marseille on early Sunday morning (AEST).

Leonard played a further five games for the British and Irish Lions but it seems only poor form on the end-of-season four-Test European tour will prevent Gregan from making it to and past 120.

Speaking in Marseille, he indicated he was hungry to play on, possibly through to the 2007 World Cup, due to the enjoyment factor.

"A pure part of it is on the field," said Gregan, 32.

"As any sportsman will tell you, once you get onto the arena that's what motivates you and I'm still enjoying that, getting out on the arena and putting yourself up against the best players in the world."

Under fire this season for his service at halfback which reportedly had him facing the selectors' axe, Gregan said it was his motivation that would decide when he hung up his boots.

"I think when you get to the latter part of any career, once that wanes all the other things start to have a domino effect," he said.

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