Liverpool's road to Champions League redemption continues as they face a Porto side looking to overturn a 2-0 first leg deficit on Wednesday night. A place in the semi-finals awaits Jürgen Klopp's men if they can keep their nerve in what will undoubtedly be a hostile atmosphere at the Estádio do Dragão, and they will be hoping their failure to kill off the tie in the first leg does not come back to haunt them.
The Portuguese champions will be boosted by the return of Mexican midfielder Héctor Herrera and Portuguese centre-back Pepe - two key players who missed the first-leg defeat at Anfield through suspension. The return of the experienced Pepe will allow Madrid-bound defender Éder Militão to move across to right back as he did effectively in the last 16 tie against Roma.
Striker Vincent Aboubakar is still not ready to return to action following a long injury layoff, meaning the usually prolific Moussa Marega will have the opportunity to put right some wasteful finishing from last week's tie in North West England.
Centre-back Dejan Lovren has not travelled with the squad to Portugal after missing training on Monday through illness. This means Cameroonian Joël Matip will be the most likely partner for the imperious Virgil Van Dijk at the heart of Liverpool's defence, although Joe Gomez has been included in the squad and played an hour for the under 23s on Sunday as he steps up his recovery from injury.
Jordan Henderson limped off towards the end of Liverpool's crucial 2-0 win against Chelsea on Sunday, but Klopp has confirmed that he is fit to start as he looks to continue his rich vein of form that has accompanied his transition to a more advanced midfield role.
The Premier League leaders will also have marauding full-back Andy Robertson available for selection after he missed the first leg due to suspension.
"There is no greater motivation than to be competing in a quarter-final and to make a historical turnaround," he told a packed news conference on Tuesday. "I like the way Liverpool play. Sometimes, they are the best team in the world".
Porto: Casillas; Militão, Felipe, Pepe, Telles; Otavio, Pereira, Herrera, Corona; Soares, Marega
Liverpool: Alisson; Alexander-Arnold, Matip, Van Dijk, Robertson; Wijnaldum, Fabinho, Henderson; Salah, Firmino, Mane