On May 9, 2021, Slagelse B&I faced AB Copenhagen at Harboe Arena Slagelse in a closely contested 2nd Division - Group 2 match. Despite a spirited effort from the home team, they were unable to break through the visitors' defense. AB Copenhagen clinched the victory with a single goal, ending the match with a final score of 1-0. The result highlighted the competitiveness of the league and underscored the challenges faced by Slagelse B&I.