Manager Arne Slot explained that Isak, who joined Liverpool from Newcastle on transfer deadline day, did not have a strong buildup to the season. Slot stated that Isak's limited training and minutes played for the national team have put him behind his teammates in terms of fitness and readiness.

Slot believes that this week's schedule, which includes three games in seven days, provides an ideal opportunity for Isak to get up to speed. However, Slot also acknowledged that it's difficult to predict exactly when Isak will be ready for a full start.

Isak's last competitive appearance was on May 25, when he played 90 minutes for Newcastle against Everton. Slot plans to ease Isak into the squad with a cameo appearance against Atletico Madrid.