While wary of Liverpool's front three, Atletico Madrid goalkeeper Jan Oblak said there was more to worry about.
Egypt remain keen to take Mohamed Salah to the Olympics in Tokyo but no decision has yet been made about the Liverpool man's inclusion.
Mohamed Salah scored twice as runaway leaders Liverpool cruised past Southampton, while Everton came back from 2-0 down to beat Watford.
Alex Oxlade-Chamberlain, Jordan Henderson and Mohamed Salah were on target as Liverpool opened up a 22-point lead over Manchester City.
Liverpool's defending and passing in their 2-0 win over West Ham fell short of their usual high standards, according to Jurgen Klopp.
Liverpool have beaten every team in a single top-flight season for the first time in their history after a 2-0 win at West Ham.
Pierre-Emerick Aubameyang and Mohamed Salah will come face-to-face in World Cup qualifiers in Africa's second round.
Virgil van Dijk and Mohamed Salah were on target as Liverpool saw off Manchester United to increase their lead at the top of the league.
Liverpool could have avoided nervous moments at the end of their 2-0 victory over Manchester United, according to Virgil van Dijk.
Having said Liverpool only drew with Manchester United in October because of his absence, Mohamed Salah joked his return ensured victory.