Davies has recovered from a knee injury suffered against Fiji while Parkes picked up a shoulder problem against Uruguay.

Biggar suffered separate head injuries against Fiji and Australia and was forced off in both games.

Wing George North is also available after recovering from an ankle injury.

Aaron Wainwright has been given a back-row place alongside Justin Tipuric and Josh Navidi with Ross Moriarty named on the bench.

Moriarty is joined by Ospreys second row Adam Beard among the replacements with Aaron Shingler dropping out of the match-day squad.

After impressing against Fiji, prop Rhys Carre keeps his place on the bench with Nicky Smith missing out.

After making 13 changes against Uruguay, Wales head coach Warren Gatland has reverted to the same starting side that defeated Georgia and Australia on the way to topping Pool D.

Davies has been training this week with his left leg heavily strapped but is given the all-clear.

Parkes and wing Josh Adams, the joint top try scorer in the tournament with five, are the only Welsh players to start all five games.

Parkes picked up a shoulder problem in the final move of the match against Uruguay and he has also been playing with a broken bone in his hand suffered in the opening game against Georgia.

"Hadleigh took a full part in today's training session so that was the first time that he had taken part since the knock on the shoulder," said Gatland on Friday.

"He ran on Wednesday and we have just kept him out of the rugby and he took a full part in today's session.

"Jonathan trained two days ago so he was fit.

"They are fine. They are both fit and a bit sore but will be ready to go on Sunday."

Biggar boost

Biggar failed a head injury assessment against Australia after a try-saving tackle on Wallabies centre Samu Kerevi, while the Wales fly-half came off second best in a collision with team-mate Liam Williams against Fiji.

Since the concussion sustained against Fiji nine days ago, the Welsh Rugby Union says it has worked collaboratively with World Rugby to deliver the highest level of care for Biggar.

The WRU says Biggar has remained symptom-free since the game and has completed the "graduated return to play" process with no issues.

This included MRI scans and two consultations with a "globally renowned" independent concussion consultant from Australia.

The WRU says: "Due to all return-to-play protocols having been met, imaging being normal and ratification from the independent concussion consultant, Biggar has been deemed fit to play.

"The WRU continues to ensure player welfare is at the fore of our decision-making processes and is independent of the any team or competition."

Gatland added: "We made sure in terms of consulting the right people and making sure they were aware of everything, getting him scanned and seeing an independent consultant was important.

"We feel we have gone through the due diligence in making sure we have covered all bases in terms of Dan. We are taking all the proper precautions.

"Dan is desperate to play, we have been conscious in the past with George North who has had a few knocks and other players.

"We just have to make sure if it does happen and he gets some knocks in the next few games or couple of months, there will probably be a different course of action.

"But he is very confident he is 100%."

France have made five changes from the side that defeated Tonga. The starting side consists of 14 players from their opening win against Argentina with the only change being lock Bernard Le Roux starting instead of Arthur Iturria.

Coach Jacques Brunel side shows six changes from the team that lost 24-19 to Wales in the Six Nations in February.

Full-back Maxime Medard is also the only survivor from the French team which beat Wales in the 2011 World Cup semi-final in Auckland.

Wales: L Williams; North, Jonathan Davies, Parkes, Adams; Biggar, G Davies; Wyn Jones, Owens, Francis, Ball, Alun Wyn Jones (capt), Wainwright, Navidi, Tipuric.

Replacements: E Dee, Carre, D Lewis, Beard, Moriarty, T Williams, Patchell, Watkin.

France: Medard; Penaud, Vakatawa, Fickou, Huget; Ntamack, Dupont; Poirot, Guirado (capt), Slimani, Le Roux, Vahaamahina, Lauret, Ollivon, Alldritt.

Replacements: Chat, Baille, Setiano, Gabrillagues, Picamoles, Serin, Lopez, Rattez.