On 16 September 1970 Herbert Laumen scored in the 6–0 win against EPA Larnaka the first goal for Borussia in a game of European club football. The first round of the following season 1970–71 saw the club having only one defeat. In the history of the Bundesliga unique is an incident in the home game of the 27th matchday against Werder Bremen, known as the "post break from Bökelberg". In the game on 3 April 1971, after a penalty area scene in the 88th minute, the striker Herbert Laumen after a head clash together with the Bremen goalkeeper Günter Bernardinto overturned the left goal post. After unsuccessful attempts at repair and no replacement goal could be set up, the referee stopped the game at the score of 1:1. The DFB sports court in Frankfurt rated the game as a 2–0 win for Bremen. As a consequence, the DFB obliged the clubs to provide a replacement for both goals. The championship was decided only on the last match day as a head-to-head race with Bayern Munich. Nine weeks after the post-break game, on 5 June 1971, Borussia were the first side in the history of the Bundesliga to defend their championship title, with a victory at Eintracht Frankfurt.