The title holders conceded an 84th minute goal on Tuesday's first-leg to lose 1-0 in Portugal.

"I've confidence that we can play much better at Anfield," Benitez was quoted as saying in a press conference following the game.

"We need to score one quickly and with our fans behind us I believe we can go on to win the game and the tie.

"I was happy with the effort of my players but maybe we could've attacked more. But it's hard for us after the amount of games we have played this season to perform at a high tempo all the time."

The Spanish manager has also said Benfica's free-kick that resulted in the winner was questionable.

"We've seen the video and I don't think it was a foul. We had discussed how dangerous they were from that particular set-piece and we ended up letting them score from it," he said.

Liverpool will host Benfica for the second-leg on March 8th.