Liverpool suffered back-to-back defeats for only the second time during Arne Slot's tenure
Liverpool's players were subjected to fireworks let off outside their Istanbul hotel designed to disturb their sleep - but it is a second successive loss that must act as the real wake-up call.
The Premier League champions hardly need to go into panic mode as they sit top of the table, but the warning signs of frailty that have dogged the early weeks of their campaign were on display again as they lost 1-0 to Galatasaray in the Champions League.
After a seamless transition following his succession to Jurgen Klopp, the title won so impressively in his first term in charge, head coach Arne Slot has hit the first real bumps in the road.
On current evidence, after spending close to £450m in the summer, this may yet turn out to be Slot's transitional campaign, rather than the smooth takeover from Klopp without any major acquisitions that followed his arrival from Feyenoord.
