The 26-year-old defender played at Barcelona's La Masia academy, before he decided to sign for the German side Dortmund.
Undoubtedly, he has not lost his love for the city. The defender kissed his black armbad after scoring in Dortmund's Bundesliga opener at Wolfsburg.
The Spaniard helped his side to complete a perfect start in the new Bundesliga season, and Mario Gotze also made his comeback.
Christian Pulisic opened the scoresheet by scoring in the 22th minute, Bartra then doubled the lead only five minutes later, with Aubameyang making it three after the hour mark.