Big-spenders Rennes travel to the Stade Geoffroy-Guichard to face Saint-Etienne in Ligue 1 on Saturday night.
Only Manchester City spent more in January than the relegation-threatened club, and this fixture could see them hand out debuts to a number of players.
Match preview
In the hope of turning their disastrous season around, Rennes spent roughly €85m (£70m) over the course of the winter transfer window, adding reinforcements in every area of the pitch.