Jurgen Klopp has warned his players to forget past conquests and brace themselves for a searching examination as they return to one of their lucky stadiums.
Porto has been a happy hunting ground for Klopp, who oversaw 5-0 and 4-1 victories at the Estadio Do Dragao in February 2018 and April 2019 respectively. Both those triumphs propelled Liverpool onto appearances in the Champions League final.
Liverpool have played Porto eight times in total in Europe – the first, in 2001, was a stepping stone to the UEFA Cup final – and they are yet to be beaten by the Portuguese giants but Klopp is not being lulled into a false sense that his team will again be so dominant.