Steven Gerrard says Celtic's Champions League exit should be a warning to his Rangers squad.
The Hoops crashed out after suffering a shock 4-3 defeat to Romanian champions Cluj at Parkhead.
Gers have their own Europa League ambitions to focus on and will now look complete the job against FC Midtjylland and move a step closer to the group stages after last week's 4-2 win in Denmark.
And Gerrard wants his men to take note of Celtic's fate and take appropriate action, saying: "What it shows last night is that European ties are never over, even when you get a positive result in the first leg.
"Some of these teams that people don't know much about - Cluj from Romania for example or Midtjylland from Denmark - they carry a huge threat.
"They are so desperate for financial reasons to progress, like most of us, so my players need to take note of last night and make sure we deal with our second leg much better."
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