Dominique Heintz is being lined up for a free transfer from 1. FC Köln to local rivals Fortuna Düsseldorf. At 32, the defender is a free agent in waiting, with his Köln deal running until June 2026, and the reporting suggests he is close to agreeing terms. Düsseldorf's aim is stated plainly: win promotion back to 2. Bundesliga, with Heintz brought in as experienced reinforcement. As things stand, only final details are said to remain. The story comes from Florian Plettenberg, a well-regarded and reliable voice, who carries solid credibility. That said, this is so far a single source rather than something corroborated across several reporters. One trustworthy name pushing a deal is encouraging, but until other voices echo it, the picture rests on one report. The engine puts this at 31%, meaning it is against the odds to complete as described — more likely to fall through than to happen. That figure reflects the tension between promising signals (a free deal, talks said to be at the final-details stage) and the thinness of the sourcing, plus the awkwardness of crossing between rivals. For it to land, those final details must be signed off and a second credible voice ideally confirm it. Heintz has moved for modest sums before, including 1.FC Köln to Freiburg for £3m in 2018 and a free move from Freiburg to Union Berlin in 2022. A free transfer here is entirely in keeping with his recent history. Watch for confirmation that the final details are sorted, a second reliable report, or the deal being formally announced by Fortuna Düsseldorf.