Dortmund have completed the £22m signing of Julian Brandt from Bayer Leverkusen.
The Germany 23-year-old has put pen to paper on a five-year deal and follows Thorgan Hazard through the door at Signal Iduna Park after he completed a £30m switch from Borussia Monchengladbach also on Wednesday.
Christian Pulisic completed a transfer to Chelsea from Dortmund in January but linked up with his new team-mates recently.
The German giants have moved quickly to replace the America by landing both Hazard and Brandt. Whether Dortmund will be able to keep hold of Jadon Sancho this summer remains to be seen.
Upon signing for Dortmund, Brandt told the club's official website: "I am a person who sometimes decides things from the gut and for whom a good feeling is important.
"In the case of Borussia Dortmund, I have a very good feeling.
"One of the main reasons for my change is that BVB narrowly missed the title last season, so there is room for improvement and I am very excited about the boys.
"I am very motivated and optimistic about my personal development but especially the whole team."
Dortmund Sport Director Michael Zorc added: "Although Julian Brandt has played in the Bundesliga for a long time and has a lot of experience both nationally and internationally, he is still a very young professional with potential for development at the age of 23.
"He can be used on several offensive positions and will enrich our game with his creativity."
