Liverpool star Roberto Firmino believes the win against Porto was just one step.

The Reds are not getting carried away after a 2-0 home triumph, as they know the away leg at the Estadio do Dragao will be a challenge.

Liverpool will be hoping to get into the semi finals for the second successive season.

"It was an important victory. We've taken the first step," the Liverpool No.9 said to the club's official website.

"We played well and we scored goals. Now we have to keep our feet on the ground because the next game will be difficult as well.

"And we have to give it our all away at their stadium."