David Nielsen has unexpectedly stepped down as the head coach of AC Horsens after a series of unsatisfactory results in the Danish 1st Division. The club made the announcement through its official website, noting that Nielsen recognized the team's struggles and deemed it in the club's best interest to seek a new head coach. His departure comes just after AC Horsens lost 1-3 to league leaders Lyngby Boldklub, leaving the team fifth in the standings, with a significant gap of nine points from the top.