Although Wijnaldum's muscle injury sustained during the recent Watford victory is not as serious as first thought, it will keep the midfielder on the sidelines for at least the semi-final encounter with the Mexican outfit.
"He's here doing the first recovery and then we have stuff what is necessary," Klopp said of the No.5 on Tuesday. "So we will see day by day but for tomorrow night he's not involved."
Virgil van Dijk is fine to feature at Khalifa International Stadium, however, despite not training with team in Qatar on Monday evening.
Klopp added: "Virgil is fine.