Union SG was founded in 1904, making it one of the oldest football clubs in Belgium.
Royal Antwerp is the oldest football club in Belgium, having been founded in 1880.
Union SG's home ground, Stade Joseph Marien, has a capacity of 8,019 seats.
Royal Antwerp's home ground, Bosuilstadion, has a capacity of 16,144 seats.
Union SG achieved promotion to the Belgian First Division A in 2021 after 48 years in the lower divisions.
Royal Antwerp won the Belgian First Division A title in the 1928-1929 season, making them one of the most successful clubs in Belgian football history.