France coach Marc Lievremont on Tuesday made four changes, one positional, to his starting lineup for the World Cup Pool A clash with Tonga in Wellington on Saturday. In come hooker William Servat in place of Dimitri Szarzewski, number eight Raphaël Lakafia instead of Louis Picamoles and winger Alexis Palisson taking over from Maxime Médard, who moves to full-back with Damian Traille dropping out. But Lievremont stuck by his controversial decision to play regular scrum-half Morgan Parra at fly-half, with Dimitri Yachvili sharing the half-back duties. Parra played at No.10 in the 37-17 defeat at the hands of the All Blacks last weekend and the coach said he had impressed in the position. Palisson will play his first match at the World Cup having missed the three earlier games due to a back injury sustained in the French training camp. France need just a single point against the Tongans to ensure their qualification for the quarter-finals where their likliest opponent will be England. France (15-1) Maxime Médard; Vincent Clerc, Aurélien Rougerie, Maxime Mermoz, Alexis Palisson; Morgan Parra, Dimitri Yachvili; Raphael Lakafia, Julien Bonnaire, Thierry Dusautoir (capt); Lionel Nallet, Pascal Pape; Luc Ducalcon, William Servat, Jean-Baptiste Poux Replacements:. Dimitri Szarzewski, Fabien Barcella, Julien Pierre, Imanol Harinordoquy, Francois Trinh-Duc, Fabrice Estebanez, Cédric Heymans