Liverpool skipper Jordan Henderson was happy with Wednesday's win over Villarreal, but admitted there was still work to do in the Champions League semi-final tie.
The Reds are ahead 2-0 after winning the first leg at Anfield on Wednesday.
"They are a very organised team and we knew they would make it difficult," Henderson told BT Sport.
"It was just important that we kept going and believe that we would eventually break them down. We did that with two good goals.
"First one was a bit lucky. Good build up but a bit lucky, in off the defender and keeper I think. But you need a bit of luck when a team plays with a low block.
"We got that and it lifted the crowd. Majority of the game, the counter-press was really good. It made it difficult for them. But the game is still alive and it will be tough in Villarreal."
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