Saint-Etienne have signed Cameroonian midfielder Landry N'Guemo on a deal until the end of the season.
The 29-year-old joins Les Verts on a free transfer after leaving their Ligue 1 rivals Bordeaux in the summer.
He is not on Africa Cup of Nations duty and could therefore make his debut away at Rennes on Sunday, where victory could take Saint-Etienne joint top of the table.
N'Guemo, who started his career at Nancy, made 43 appearances during a loan spell at Celtic in 2009-10.
He has scored three goals in 42 international games and played for Cameroon at the 2014 World Cup in Brazil.
