Former Celtic star Moi Elyounoussi insists their injury time goal against Kilmarnock will make all the difference.
Killie lost in Denmark in the play-off first leg for the Europa Conference League group stages to FC Copenhagen in a 2-0 defeat with Rasmus Falk's strike coming in the sixth minute of injury time.
And Norway international Elyounoussi, who had two loan spells at Celtic, reckons that could be key.
He said: "It was very important to get that second goal. There is a big difference between 2-0 and 1-0. It was a good win with lots of energy, but it was just the first leg. We still have a game in Scotland."
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And his views were echoed by goal hero Falk.
He said: "There is a huge difference between whether it is 1-0 or 2-0 to us. I am really, really happy to have scored that second goal.
"We have a difficult away game in Scotland to come, but there's no doubt the second goal gives us more peace of mind.
"But that won't change anything in our mindset. We have to go to Scotland to win the game.
"I thought we played well in the second half in particular."