Dragons suffered a second Champions Cup defeat as Bordeaux-Begles secured a 47-8 win at Stade Chaban-Delmas.
Argentina wing Santiago Cordero crossing for a hat-trick and fly-half Matthieu Jalibert scoring 15 points for ther home side.
It was a second successive win for Bordeaux-Begles to follow up their victory over Northampton.
Wales international centre Nick Tompkins scored a late try for Dragons.
Click above for images from the game in France.