Neil Lennon reckons his French contingent can help get Celtic off to a flying start in the Europa League group stage - with a little home comfort.
Lennon feels Christopher Jullien, Olivier Ntcham and Odsonne Edouard could be inspired by the return to France for the Group E opener.
Ladbrokes Premiership player of the month Edouard is certain to start up front, especially with Leigh Griffiths missing with a thigh knock, and returns to France weeks after netting four goals in two games for his country's Under-21 side.
Centre-back Jullien has been passed fit after a weekend head knock and is also sure to play amid injuries for Jozo Simunovic and Nir Bitton.
The £7million summer signing from Toulouse has shown real signs of settling into the heart of the defence in recent games.
And Ntcham could feature in midfield as Lennon bids to devise a formula to cope with a side who won their opening three Ligue 1 games.
The midfielder shone off the bench against Rangers before the international break but was left out of Saturday's win at Hamilton.
Lennon said: "Yes, I am tempted to bring him in, because he's a good player.
"And I think the guys coming back to France... Jullien knows the environment very well, Odsonne has been away with the Under-21s and done fantastically well.
"I always think going back to your home country is a great incentive to show the people back home, your family, your friends, how much you have come on and how much you have developed.
"So I think there is a little bit of extra incentive and motivation for these players, there is no question of that."
Celtic have scored in all 14 games they have played this season and had much of the play in their away qualifiers.
But Lennon realises that Thursday's contest against the French Cup holders, who reached the final 16 of this tournament last season, is a different proposition.
"You do have to assess those scenarios in terms of changing formation," he said.
"We are not expecting to have the bulk of possession, which we normally have.
"Rennes are excellent on the ball and use the 3-5-2 system very, very well. They have had some stellar results already this season, including beating PSG, and they are sitting second in Ligue 1.
"We have given this game quite a bit of thought over the last few days and we have worked on a few things, and the players are ready."
