Mohamed Salah also falls into that category, with the Egyptian superstar seeing his remarkable standards dip at the start of the current campaign - leading to him being dropped to the bench by Arne Slot for important Champions League fixtures on the road.
Swedish striker Isak has just one Carabao Cup goal to his name, while German playmaker Wirtz is still waiting to open his account. Dutch forward Cody Gakpo has also missed some glaring chances, with Liverpool having relied on late goals early in the season to paper over the cracks that were beginning to form on Merseyside.
Time is still on their side when it comes to unlocking full potential, with Isak and Wirtz too talented not to come good, but questions are being asked of whether Slot has assembled a cohesive squad or a collection of individualist superstars - much like PSG once did.




