Liverpool's Champions League opener against Atletico Madrid sees the debut of Alexander Isak as a starter, marking a significant moment for the club's £125 million signing. Isak, who transferred from Newcastle, is still working on his match fitness, having had limited game time since joining, including a brief 18-minute stint with Sweden after May. Despite his lack of recent competitive action, Isak participated fully in training sessions leading up to the fixture at Anfield, signaling readiness to contribute to the side.

Manager Arne Slot has been cautious about rushing Isak back to full match fitness, emphasizing a gradual integration. Slot indicated that even if Isak plays around 45 minutes against Atletico, it does not mean he will be ready for extended playing time in upcoming matches such as the Merseyside derby. The focus remains on building his fitness progressively. Sky Sports News highlighted that Isak’s involvement in the squad for this pivotal Champions League game is increasingly likely, with the player training together with the team and being considered for minutes on the pitch.

The game is expected to showcase a promising link-up potential between Isak and Liverpool midfielder Florian Wirtz, who is anticipated to be at his best in the coming matches, as confirmed by the coaching staff. This partnership could be a key tactical element for Liverpool as they aim to overcome Atletico’s well-organized defensive setup under Diego Simeone. The match also features team changes, with Isak making the starting XI, underlining Slot’s intention to introduce fresh attacking options to challenge Atletico at Anfield.