Liverpool's Thiago Alcantara celebrates scoring their first goal during the match Champions League Group B Liverpool vs FC Porto at Anfield, Liverpool, November 24, 2021. Second-half goals by Thiago Alcantara and Mohamed Salah earned a below-strength Liverpool a 2-0 win over Porto to maintain their 100% record in Champions League Group B. REUTERS/Phil Noble

Liverpool's Thiago Alcantara scores their first goal during the match Champions League Group B Liverpool vs FC Porto at Anfield, Liverpool, November 24, 2021. Action Images via Reuters/Molly Darlington

Liverpool's Sadio Mane scores their first goal before being disallowed during the match Champions League Group B Liverpool vs FC Porto at Anfield, Liverpool, November 24, 2021. Action Images via Reuters/Molly Darlington

Liverpool's Sadio Mane scores their first goal before being disallowed during the match Champions League Group B Liverpool vs FC Porto at Anfield, Liverpool, November 24, 2021. Action Images via Reuters/Molly Darlington

Liverpool's Mohamed Salah scores their second goal during the match Champions League Group B Liverpool vs FC Porto at Anfield, Liverpool, November 24, 2021. REUTERS/Phil Noble

Liverpool's Mohamed Salah celebrates scoring their second goal with teammates during the match Champions League Group B Liverpool vs FC Porto at Anfield, Liverpool, November 24, 2021. Action Images via Reuters/Molly Darlington