Porto midfielder Hector Herrera insists they can upset Champions League opponents Liverpool.

Herrera says Porto are capable of overturning their 2-0 deficit.

"There is no desire for revenge. Last year's result is in the past," Herrera said. "We have a great opportunity to continue to make history and we do not want to waste this opportunity.

"They have the advantage, but I believe in the ability we have as players and as a team.

"I am very confident and I believe we can get a good result and keep our Champions League dream alive."