 Complete the following phrase:  By winning the European Cup, they qualified for the European Super Cup and played the winners of the Cup Winners Cup, German team Hamburg, who had just signed Keegan. Liverpool won the tie 71 on aggregate. Liverpool entered the 197778 European Cup as champions and received a bye in the first round. They defeated Dynamo Dresden and Portuguese team Benfica in the second round and quarter-finals, respectively. In the semi-final, the club again met Borussia Mönchengladbach, who won the first leg 21. Liverpool won the second leg 30, progressing to a second successive 