Pep Guardiola is short of options in central midfield with Ilkay Gundogan picking up an injury and Milner would have certainly been a welcome option against Paris Saint-Germain.
Chelsea meanwhile have similar issues in midfield with N’Golo Kante testing positive for COVID-19.
Jorginho and Mateo Kovacic are being relied upon on a regular basis while Saul Niguez has struggled to impress since his loan move.
Milner would be the kind of player Thomas Tuchel would no doubt love to have at his disposal at certain times in the season.
Thankfully for Klopp, Milner is still proving his critics wrong and going about his business quietly.
But his importance to this Liverpool side certainly doesn’t go unnoticed and rival bosses may well be watching with some envy.