Hamburg - Ruud van Nistelrooy's winner gave Hamburg SV a 2-1 quarter-final first leg victory at home to Belgian side Standard Liege.
Hamburg, whose stadium will host the final, fell behind when Democratic Republic of Congo striker Dieudonne Mbokani was left free at a corner and scored with a powerful header in the 31st.
Ex-Manchester United and Real Madrid striker Van Nistelrooy hit the post and then shot wide from 12 metres before Croatia forward Mladen Petric levelled with a 42nd minute penalty.
Three minutes later, Van Nistelrooy got in front of his marker to guide Dennis Aogo's cross home from six metres.
"We thought they would stay back in defence but they played good football," said the Dutch striker. "I think we played well and got a good result which leaves everything open."
Hamburg, whose stadium will host the final, fell behind when Democratic Republic of Congo striker Dieudonne Mbokani was left free at a corner and scored with a powerful header in the 31st.
Ex-Manchester United and Real Madrid striker Van Nistelrooy hit the post and then shot wide from 12 metres before Croatia forward Mladen Petric levelled with a 42nd minute penalty.
Three minutes later, Van Nistelrooy got in front of his marker to guide Dennis Aogo's cross home from six metres.
"We thought they would stay back in defence but they played good football," said the Dutch striker. "I think we played well and got a good result which leaves everything open."