 Complete the following phrase:  In the 197980 season, HSV returned to the European Cup for the first time since 196061. As had happened 19 years ago, HSV faced Spanish opposition in the semi-finals. After losing the first leg at the Santiago Bernabéu Stadium 20, HSV thrashed six-time winners Real Madrid 51 at the Volksparkstadion to qualify for the final. HSV returned to Madrid to play Nottingham Forest in the 