one year later. Eight spectators were arrested after the match between BFC Dynamo and Union Berlin at the Dynamo-Stadion im Sportforum on 28 December 1971. The match was attended by 14,000 spectators and the stadium was sold out. The football landscape in East Berlin changed before the 1971–72 season. Vorwärts Berlin was relocated to Frankfurt an der Oder on 31 July 1971. BFC Dynamo and Union Berlin were from now on the only major football clubs in East Berlin. The relocation meant that BFC Dynamo could now take over the role of the dominant team for the armed organs in East Berlin. The team would have the opportunity to move into the larger and more centrally located Friedrich-Ludwig-Jahn-Sportpark, which led to increased interest in the club and growing attendance numbers. The districts in East Berlin had previously been divided between BFC Dynamo, Vorwärts Berlin and Union Berlin. Each club was able to recruit young players from training centers (TZ) in their districts. All training centers that had previously belonged to Vorwärts Berlin were now given to BFC Dynamo. The DTSB allegedly saw more potential in BFC Dynamo. BFC Dynamo now had access to two thirds of all training centers (TZ) in East Berlin. This meant that BFC Dynamo had gained a much stronger position in East Berlin than Union Berlin when it came to recruiting young players. FC Vorwärts Frankfurt was given Bezirk Potsdam as a catchment area, in addition to Bezirk Frankfurt. Bezirk Potsdam had previously been assigned to Union Berlin and thus had to be handed over to Vorwärts Frankfurt. Union Berlin was relegated to the DDR-Liga after the 1972–73 season. The Union Berlin star Reinhard Lauck was transferred to BFC Dynamo after the relegation. The loss of Lauck was a hard blow for the team. Lauck had contributed greatly to the victory in the final of the 1967–68 FDGB-Pokal and was well-liked among the supporters of Union Berlin. Supporters of Union Berlin are said to have gathered outside his apartment, to appeal to him to stay in the team and play in the second tier. But Lauck had already decided to change team. The DFV had allegedly advised him to switch to BFC Dynamo in order to continue playing in the national team. According to a regulation in the 1970 DFV Football Resolution (), national team players in clubs that had been relegated from the DDR-Oberliga should