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Celtic face Swedish champions AIK on Thursday as they bid to secure European football at Parkhead this season.
The Hoops travel to Stockholm with a two goal advantage following goals from James Forrest and Odsonne Edouard.
The home side were unlucky to only score two but AIK were stubborn and solid in defence while playing five at the back.
However, this will not be the case on Thursday when AIK will need to be on the front -foot from the off.
The Swedish side scored three times against both Ararat-Armenia and Maribor at home in Champions League qualifying, so Celtic will need to be aware that they will be facing a different setup to last week.
However, Lennon’s men play at the Friends Arena at a time where AIK are struggling at home, with only one win in their last four games there in all competitions.
It’s a huge game for both clubs and although Celtic are overriding favourites, the tie is far from over and is sure to be a competitive contest.
Below, we take a look at the all important key battles.