BVBWLD.de
·11 September 2026
“Insane level”: Hummels raves about this new BVB signing

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·11 September 2026

Borussia Dortmund is placing great hopes in sporting director Ole Book. Mats Hummels has praised his work and is particularly enthusiastic about one new BVB signing.
Ole Book is expected to play a key role in shaping Borussia Dortmund’s sporting rebuild. Since Sebastian Kehl’s departure at the end of March, the 40-year-old has been in charge as BVB’s sporting director. His work so far has apparently been well received not only within the club. Mats Hummels has also found words of praise for the former Elversberg man.
Before the Champions League clash with Villarreal (3-2), Hummels spoke about Book’s manner during an appearance on Amazon Prime. “I think he comes across really well. I like the way he talks, what he says — he has a certain relaxedness about him. I also get the feeling that there’s always about five percent fun in his comments,” explained the former Dortmund player.
Hummels also highlighted the sporting director’s work ethic. He said he had heard positive things from Dortmund and from Book’s previous spell at SV Elversberg. “People said he was the first to arrive and the last to leave. That doesn’t seem to be any different here.” However, the biggest attention is focused on Book’s first transfer window at BVB. In the summer, Dortmund relied in part on young players with huge potential for development.
That, in particular, is where Hummels sees a strategy that has worked well for the club in the past. Speaking about the squad that has been assembled, he said: “It’s an incredibly exciting team and exactly what has always defined BVB.”

Photo: Getty Images
The 2014 World Cup winner has especially high hopes for Joane Gadou. Hummels, who himself played at center-back for many years, believes the new signing is capable of major development. “I already see him at an insane level, and I expect a lot from him over the next few years,” said the 37-year-old.
Coach Niko Kovac was also satisfied with Book’s work so far. The sporting director, he said, immediately focused on how the squad could be improved after taking office. After his first summer transfer window, Book still faces a demanding task. The new players are not only expected to provide fresh momentum in the short term, but also to bring Dortmund closer to winning titles again in the long run.
This article was translated into English by Artificial Intelligence. You can read the original version in 🇩🇪 here.







































