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FC Bayern München host Royale Union Saint-Gilloise at the Allianz Arena on Wednesday evening, January 21, 2026, in a Champions League clash between two domestic leaders. Vincent Kompany's Bayern sit atop the Bundesliga with 50 points from 18 matches, while David Hubert's Union SG lead Belgium's Pro League with 42 points. Bayern enter as overwhelming favorites, but the Belgian visitors have shown resilience throughout their campaign.
Bayern steamrolled through January with three consecutive blowout wins. They thrashed Wolfsburg 8-1 on January 11, beat Köln 3-1 on January 14, and demolished Leipzig 5-1 on Saturday. Harry Kane leads a devastating attack that has scored 71 league goals already this season. Serge Gnabry, Michael Olise, and Aleksandar Pavlović provided crucial goals against Leipzig. Vincent Kompany faces defensive concerns with right-backs Konrad Laimer and Josip Stanišić both sidelined, while Sacha Boey remains doubtful with illness.
Union SG arrives in Munich with momentum from back-to-back wins. They eliminated Dender 2-0 in the Belgian Cup quarter-finals on January 14, then edged KV Mechelen 1-0 on Saturday with Promise David's 35th-minute strike. December brought mixed results—a 2-0 win over Zulte Waregem on December 20, draws against Gent on December 6, Charleroi on December 14, and Cercle Brugge on December 26, plus a 2-3 Champions League loss to Marseille on December 9. Kevin Mac Allister and Raul Florucz remain out injured, while new signing Besfort Zeneli could feature after joining from Elfsborg.
These sides have never met in competitive action before this Champions League encounter. Bayern's European pedigree dwarfs Union SG's, though the Belgians have proven capable of upsetting bigger opponents during their maiden Champions League campaign. This represents Union SG's toughest test yet.
My model backs Over 3.5 Goals at 31/50 (1.62 decimal) with a 63.49% win probability. The predicted scoreline is FC Bayern München 3-1, supported by expected goals of 3.32 for Bayern and just 1.05 for Union SG. Bayern have scored at least three goals in seven consecutive matches across all competitions. That xG gap of over two goals reflects the gulf in attacking quality between these sides, making a high-scoring affair the likeliest outcome.
