After 89 minutes Midtjylland made a speedy advance and dropped the ball to Anders Dreyer who shuffled it past the keeper.
1-0 to Liverpool stood for a while longer.
Shortly before, Liverpool's Roberto Firmino had shot over in free position.
In extra time, substitute Mohamed Salah was pulled down from behind.
After VAR review, Salah threw his own penalty in goal on force and determined 2-0.
A new midfielder broke for The Reds.
After half an hour, Fabinho went out due to injury.
Liverpool's first goal came at the start of the second half.
Diogo Jota stayed ahead and hit the ball after a fast-rolling attack by Liverpool.
It was the club's 10,000th goal of all time.
- The three points were the most important, Jota states.