There is a particular kind of nerve required to go to the Alte Försterei and play your normal game, and plenty of visiting sides over the years have discovered they do not have it. That is the first thing to understand about this one. Borussia Dortmund arrive with the better individuals in almost every position, but Union Berlin have spent years turning technical mismatches into street fights, and on their own ground, under their own crowd, with the away end tucked in close enough to feel the noise on your neck, that history matters more than most form tables let on.
Kickoff is set for 15:30 local time in Köpenick, an afternoon slot that tends to suit Union's approach: a raucous, full house rather than the half-empty chill of a Friday night game, with the atmosphere building from the moment the teams walk out. Dortmund have made this trip before and know exactly what is coming. The question is whether their squad, which on paper should be comfortably the better footballing side, can impose its game plan on a pitch that is notoriously tight and a opponent that refuses to let anyone play at their own tempo.
The tactical battleground: control versus chaos
Union's whole approach under their current setup is built around denying the opposition time on the ball in dangerous areas and then attacking with directness the moment possession turns over. They do not try to out-pass visiting teams, they try to make the game uncomfortable: compact banks of defense, aggressive duels in midfield, and quick vertical balls into forward areas the instant they win the ball back. Against a technically superior side like Dortmund, that is precisely the right plan, because it takes away the one advantage Dortmund are used to having, which is time and space to build attacks through midfield.
Dortmund's challenge is to stay patient against that kind of suffocation without becoming sterile. Their best moments typically come when they can stretch play wide and get runners in behind full-backs before Union's back line has reset, because once Union get numbers behind the ball and the game slows into static phases, they are at their most dangerous defensively and least threatening is actually when the opposition tries to walk through them. Dortmund need tempo and directness in their own build-up, not patience for its own sake. If they try to pass their way through Union's press in the center of the pitch, they will invite exactly the kind of turnovers Union live for.
Team news: what we actually know
I want to be straightforward here rather than pretend to a level of certainty the available reporting does not support. As of this week, confirmed starting lineups for this specific fixture had not been published, so anything presented elsewhere as a definite XI for Union versus Dortmund should be treated with caution until the team sheets land. What is confirmed and relevant is more specific. On the Dortmund side, Julian Ryerson has been a doubt in recent weeks with a rib injury that kept him under question for the Werder Bremen match, and if that issue persists it is a real blow, because Ryerson's energy and overlapping threat down the right is part of how Dortmund break down compact, low blocks of the kind Union will present. Without him fit, Dortmund's manager has to decide whether to shuffle a natural center-back into that slot or ask a more conservative option to provide the width, and either choice changes the profile of Dortmund's right-sided attacks.
In goal, Gregor Kobel has been in excellent form on international duty, helping Switzerland maintain a perfect record through their recent Nations League fixtures alongside Aebischer. That matters more than it might seem at first glance. A goalkeeper carrying confidence from clean sheets at international level tends to bring that composure back into his club form, and against a Union side that will generate transition chances and set-piece opportunities simply by the way they play, Dortmund are going to need Kobel alert and sharp rather than shaky behind a back line that may already be reshuffled due to the Ryerson situation.
On Union's side, the specific team news circulating this week has centered on their Pokal and league fixture against Elversberg rather than this Dortmund match, so I am not going to pretend to certainty about personnel that has not been confirmed for this particular game. What I will say with confidence is that Union's identity does not depend heavily on any one individual the way some squads do. Their system is the star, built on energy, organization, and buy-in from every player on the pitch, which is part of why they have been able to compete with sides boasting far bigger individual talent gaps over the years at this stadium specifically.
What each side must do to win
For Dortmund, the priority is patience in buildup but speed in the final third. They should look to draw Union's press forward and then release runners in behind rather than trying to dribble through traffic in central areas, because Union's whole defensive scheme is designed to bait teams into exactly that kind of congested, low-value possession. Width is crucial, which is exactly why the Ryerson question looms large. If Dortmund can get their fullbacks or wide forwards isolating Union's defenders one against one in wide areas, the quality gap should show. If they get bogged down trying to walk the ball through the middle of the pitch, this becomes a very different, much tighter contest.
For Union, the formula that has worked against bigger names at this ground is simple in concept and brutal in execution: win the physical battles first, make Dortmund's technical players turn their backs to goal under pressure, and strike on the counter the moment the opportunity appears. They do not need to dominate territory or possession stats, and in fact trying to do so would play into Dortmund's hands. Set pieces matter too. A crowd that loud, a stadium that tight, makes every corner and free kick feel more dangerous than the raw numbers might suggest, and Union have shown over the years they know how to use that atmosphere to manufacture chances that would not exist in a quieter ground.
Why I am leaning Dortmund, carefully
My read is that Dortmund's attacking talent is simply a level above what Union can consistently contain over ninety minutes, and that shows up most clearly in my expected goals numbers, which lean toward the visitors without suggesting anything like a comfortable afternoon. But I am not backing a routine away win, because Union have made a habit of making technically stronger sides sweat on this exact ground, and the uncertainty around Dortmund's right side with Ryerson's fitness in question is a real variable rather than a footnote. If that injury forces a reshuffle, Union will target that flank relentlessly, and a scrappy, stop-start game becomes much more likely than a clean Dortmund procession.
The biggest risk to my calls is obvious: if Union's pressing triggers disrupt Dortmund's rhythm the way they have against other technically superior visitors, this becomes a low event, frustrating afternoon where goals are scarce and the home crowd drags their team over the line, or at least to a point. I think Dortmund have enough quality in the final third, particularly through a focal striker capable of scoring against any kind of defensive setup, to find at least one route through, and I expect Union's commitment to attacking even against the better side to open up space at the other end too. That is why both teams to score and a game that climbs past two and a half goals both feel like sound reads to me, even within an overall lean toward the away win.
Verdict
This has the shape of a match that will not go entirely to form. Dortmund should have enough across ninety minutes, built on individual quality in the final third and a goalkeeper in good touch behind them, but Union's identity at the Alte Försterei is specifically engineered to make the big names uncomfortable, and with Dortmund's defensive personnel not entirely settled, I expect this to be contested far more fiercely than the gap in squad value suggests. Back the away win, back goals at both ends, and do not be surprised if the home side are still very much in this deep into the second half.
