Pep Guardiola, prepping for Manchester City's Champions League test at Atalanta on Wednesday, while also undoubtedly plotting for the weekend's titanic showdown at Anfield, will have seen a familiar and unwelcome sight.
Just under an hour into Liverpool's 2-1 home victory over Genk on Tuesday, Alex Oxlade-Chamberlain collected Mohamed Salah's fleet-footed lay-off and swivelled before driving a shot into the bottom corner.
That goal, his fourth in the last three starts, was the winner and crowned a dynamic performance that served as a throwback of the midfielder's best form prior to sustaining multiple ligament damage in April 2018.