Pierre-Emerick Aubemeyang has completed a move from Saint-Etienne to Dortmund for an Undisclosed fee.
The 24-year-old Gabonese striker took to twitter to thank the club and Saint-Etienne fans.
“Before everything I want to thank this great club of Saint-Etienne, a great family that I’ll never forget,” said the 24-year-old.
“Thanks and let’s go now BvB, a dream which goes on for me. Thanks lord.”
Dortmund have signed Aubemeyang to strengthen the attack, following the departure of Mario Gotze to Bayern Munich.
Aubameyang appeared 37 times for the Ligue 1 side last season scoring 19 goals.