Borussia Dortmund are bracing for impact.
Inside Signal Iduna Park, the message is clear: the club will not be caught cold if the heart of their defence is ripped out this summer. With uncertainty swirling around Nico Schlotterbeck and Niklas Süle expected to move on, BVB have accelerated plans for a new era at the back – and a 19-year-old from Rennes has moved to the top of the list.
Ait Boudlal: The next big bet
Abdelhamid Ait Boudlal is the name on the recruitment board. Just 19, under contract at Rennes until 2028, and already tagged as one of the most promising centre-backs in Ligue 1. His rise has been sharp, his reputation growing faster than his appearances might suggest.
He comes with a winner’s medal, too. Ait Boudlal was part of Morocco’s Africa Cup of Nations–winning squad, a triumph sealed in unusual fashion after a legal ruling following the tournament. He barely featured on the pitch and has only one brief senior cap to his name, but inside scouting circles his stock has surged. The feeling is simple: get him now, before his price explodes.
Sporting director Ole Book has made him a high-priority target. Dortmund want to move early, ahead of Europe’s heavyweight predators, and build a defensive line that can grow together over the next cycle rather than scramble for short-term fixes.
Schlotterbeck saga forces Dortmund’s hand
The urgency stems from one man: Schlotterbeck.
The Germany international has been a constant presence in the Dortmund XI, a cornerstone in a back line that has already endured enough turbulence in recent seasons. But contract talks have dragged on, and dragged publicly. No breakthrough, no clarity, no clean narrative to reassure the fanbase.
Patience is thinning. Sections of the supporters have grown tired of the weekly updates and veiled comments about his future. Every delay only sharpens the sense that Dortmund must protect themselves.
The club would rather keep him. That much is obvious. A left-footed centre-back with his profile is hard to replace. Yet the reality of the modern market is ruthless: if Schlotterbeck chooses a new challenge, BVB cannot afford to be reactive. They need the next man – or men – ready to walk straight in.
That is where Ait Boudlal comes in. Young, athletic, with the upside to become a pillar for years. A signing for now, but even more for what comes next.
Süle exit deepens the void
If losing Schlotterbeck would be a major blow, doing so while Niklas Süle heads for the exit would be a full-scale reconstruction job.
Süle, the former Bayern Munich defender, is widely expected to depart in the summer window. His exit would strip the dressing room of a sizeable chunk of top-level experience and physical presence. For a squad that has often been accused of lacking defensive steel, that is no small detail.
Two senior centre-backs gone in one window? That is not a tweak. That is surgery.
Book and his recruitment team know they cannot simply pin everything on a 19-year-old prospect. Ait Boudlal might be the headline target, but he is not the only name in the frame. Dortmund are casting their net across Europe, with several high-profile options under close watch.
Marcos Senesi has been mentioned repeatedly, a defender with the kind of battle scars and maturity that could anchor a reshaped back line. Joane Gadou is another on the radar, part of a wider shortlist designed to give BVB flexibility: one eye on potential, the other on reliability.
The brief is stark – avoid a defensive crisis before it starts.
A wider rebuild: back to real wingers
This is not just about centre-backs. Dortmund’s summer plans cut right through the spine and out to the flanks.
There is a growing desire inside the club to return to a more traditional attacking structure, one built on genuine wide players who hug the touchline and stretch games. Chalk-on-the-boots wingers, not just inverted forwards drifting into crowded central zones.
The current squad, in the eyes of the hierarchy, does not quite fit that blueprint. Too many players want the same spaces. Not enough raw width, not enough one-on-one threat in wide areas.
That is why Diego Moreira of Strasbourg has entered the conversation. Contracted until 2029 and looking for the next step, he fits the profile Dortmund crave: young, dynamic, and capable of giving their attack a different dimension from the outside in.
A crossroads summer
What unfolds over the next few months could define Dortmund’s defensive identity for years. Keep Schlotterbeck and replace Süle smartly, and the transition might look smooth. Lose both, miss on key targets, and the club could be staring at a fragile back line heading into a demanding season.
For now, the work is quiet, deliberate, and urgent. Ait Boudlal, Senesi, Gadou, Moreira – these are not just names on a list. They are pieces in a broader attempt to reshape BVB before the cracks become chasms.
The question is no longer whether Dortmund will change this summer. It is how bold they are prepared to be when the first big domino finally falls.
