The two sides will meet again back on Merseyside on May 5 (8.05pm) but Jurgen Klopp will need his side to score at very least in order to reach the final.
However, after a sensational 4-3 win over Borussia Dortmund in the quarter-final, goalkeeper Mignolet is convinced they can turn the result around in a similar manner.
“Unfortunately it happened at the end.
"We played a good game, everybody saw the quality of Villarreal but we had some chances to score."
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