Answer
Borussia Dortmund secured the services of Sébastien Haller from Ajax in the summer of 2022. The Ivorian international joined the German Bundesliga giants for a reported fee of €31 million, making him one of the club's most expensive signings in recent years. Haller provides a physical presence upfront and is known for his aerial prowess and goal-scoring instincts, adding a new dimension to Dortmund's attack.