"We have to take the confidence from the Besiktas game and our form in the Premier League into the game tonight," said the striker.
"If we do that then I am sure we will be okay because we have more quality and better players than we showed when we drew with Porto earlier this season.
"I think they will see the real Liverpool tonight.
"We had a lot of problems at the start of the Champions League campaign but the last game against Besiktas showed exactly what we can do.
"You never give up hope. In football anything is possible and I never stopped believing that we would qualify.
"Porto is a massive game but it is one we are all ready for and we have the quality to beat them."
