Jordan Henderson, Adam Lallana and Alex Oxlade-Chamberlain returned from England senior duty, while their compatriots Trent Alexander-Arnold and Dominic Solanke were back after representing the Three Lions' U21s side.
Dutch duo Georginio Wijnaldum and Virgil van Dijk also resumed training with the Reds today having added to their tally of caps with the Netherlands.
With their international duties completed, Jürgen Klopp's men now turn their focus towards Saturday's trip to Selhurst Park for a Premier League meeting with Crystal Palace.