Martin O'Neill has told his Celtic squad to stay off social media.
The manager has issued the warning ahead of their clash against LASK in Austria. Celtic have a 3-0 lead after their Glasgow win, but O'Neill insists the tie is far from over.
He is wary of the threat posed by their opponents. O'Neill said: "Honestly, I swear to you, there will be no complacency. The players know it, they absolutely do know that we're playing against a really good side.
"They're capable of scoring with a lot of pace up front. They're strong, athletic, and even their smaller lads are very, very quick. So we've got our work cut out.
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"I don't even think I'll have to say anything to our lads; I really don't. Of course, I had some chat after the game the other night.
"But I promise you, regardless of the result, we will not be complacent."
Discussing social media, O'Neill added: "One thing I said to the players was, don't be going on Facebook or Instagram, or whatever else they call it.
"I told them, leave it, leave it."
