Union St.-Gilloise arrive at Balaidos on the back of a five‑game run that reads WWWDD, and the shape they’ve built is unmistakable: a compact rear line that has conceded just one goal in that span, a midfield that links play with quick transition threat, and a frontline that finishes with purpose—Guilherme Smith’s two strikes have turned half‑chances into goals, while Besfort Zeneli’s single assist shows the willingness to recycle possession into danger. Their +7 goal‑difference sits at the top of the Europa League table, and the club’s travel‑spot reputation—jet‑lagged arrivals, cramped dressing rooms—has not yet cracked their defensive resolve. In the league phase, a win or draw is enough to keep the knockout door ajar, so Union will look to press high, force Celta’s back line into errors, and use set‑piece routines to keep the pressure mounted. Celta Vigo sit 25th with a –1 goal‑difference after three wins, one loss and a draw, and the recent loss of shape shows in their midfield control—Javi Rodríguez’s two goals from the back line are rare moments of finishing quality in an otherwise tentative attack that has produced just 0.6 per game. Home at Balaidos, they must win to stay alive in the competition, and the pressure of that imperative will test their pressing shape against Union’s disciplined, counter‑ready system. Any slip in the final third or a lapse in set‑piece organisation could hand Union the draw they need, making Celta’s path to a knockout spot a matter of urgency rather than convenience.