As things stand, this is interest and nothing more. Real Madrid are said to view Nico Schlotterbeck as a priority target, and the route to a deal is clear in principle: the Dortmund defender carries a release clause set at £42.5m. But no bid has been lodged and no agreement reached. Schlotterbeck is tied to Dortmund until 2031, so without the clause being triggered, Madrid would need to talk the German club round — and there is no sign that conversation has begun. The sourcing here is thin. The story rests on a single recent report from Diario SPORT, which frames the situation honestly as "concrete interest" rather than anything firmer. There is no benchmark reporter breaking this, no corroboration across multiple reliable voices — just one link describing an admirer and an available clause. Treat it accordingly. That is why the engine puts this at just 10%, a longshot. The percentage reflects a deal that is plausible on paper but barely off the ground in reality. For it to climb, Madrid would need to move from admiration to action: an actual bid, or the clause being met. The clause makes the price knowable, which is the one thing in its favour; everything else — the lack of a bid, the long contract, the single-source reporting — is holding it down. The money is in keeping with how Madrid do business. They paid Porto £43m in 2019 and Lyon £41m in 2019, so a £42.5m clause sits squarely in that range. Watch for the first concrete bid or any move to activate the clause. Until then, this stays a rumour.