Liverpool defender Mamadou Sakho completed 65 minutes as France surged to a second World Cup victory, comprehensively beating Switzerland 5-2 in Salvador.
Didier Deschamps' charges followed up their opening win over Honduras with another three points to take total control of proceedings in Group E.
Having picked up a slight knock, Sakho was withdrawn midway through the second period.
Olivier Giroud put France in front with a towering header on 17 minutes, rising highest to meet an outswinging corner and redirect into the opposite top corner with aplomb.
The action had barely resumed before it was 2-0. Straight from kick-off, Les Bleus burst forward and Karim Benzema set up Blaise Matuidi in the left channel to rifle home at the near post.
Real Madrid striker Benzema won a penalty shortly after the half-hour but watched his blast saved by Diego Benaglio and Yohan Cabaye somehow sent the rebound crashing onto the woodwork.
But it was three with five minutes remaining in the first half; a blistering counter-attack concluded with Giroud passing across the area for Mathieu Valbuena to tap into a gaping net.
Benzema added to his tournament tally with a hooked effort and then assisted Moussa Sissoko for an excellent side-footed finish from range on the right hand side.
A minor fightback did occur - Blerim Dzemaili earned a consolation with a low free-kick from distance and Granit Xhaka claimed a second for Switzerland with a sweet left-foot volley.
France complete the section when they take on Ecuador next Wednesday; Switzerland will meet Honduras at the same time.