LIVERPOOL, England -- Liverpool head coach Arne Slot has admitted he was surprised by the fitness of striker Alexander Isak during his debut against Atlético Madrid .

The Sweden international played 58 minutes of Liverpool's 3-2 win before being replaced by fellow summer signing Hugo Ekitike . Isak joined the Premier League champions from Newcastle United on transfer deadline day for a British-record £125 million ($171m) and is still working his way up to full fitness following a disrupted preseason.

- Isak might be the new star, but Salah remains Liverpool's main man

- Simeone on Anfield squabble: I was fighting back

- Van Dijk heads Liverpool to rousing win over Atleti

"In the 60 minutes he played he seemed to be quite fit to me," Slot told TNT Sports. "It wasn't as i

See Full Page