The reigning La Liga champions dealt with a flurry of injuries earlier in the season headlined by Lamine Yamal’s recurring groin problem. As they get set to welcome fans back to Camp Nou, Flick is close to having a fully fit squad once again.

As Chelsea ready themselves to face a side who have for so long been the yardstick against which all other European clubs are measured, they might ask whether they are hitting their own standards, let alone the lofty ones that Barcelona continue to set.