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Maribor maintain there is nothing to fear as Chelsea travel to Slovenia intent on claiming another Champions League Group G win.
Arghus was an unused substitute when Chelsea claimed a 6-0 win over the Slovenians at Stamford Bridge two weeks ago.
The defender is making the right noises about causing an upset at Maribor's Stadion Ljudski vrt home, despite the Slovenian champions entering the match after losing 1-0 at home to Domzale last Friday.
"Chelsea are a big club, probably the biggest to ever come to our stadium," Arghus said on uefa.com.
"But I trust my colleagues, we believe in ourselves and we know that we can play against any team in the world.
"Of course Chelsea are big favourites, but they will have to beat our defence first.
"Yes, they are quick with a lot of creativity in attack. Everybody knows Chelsea - we watch them every week - so we know that they don't have any weaknesses.
"But at the same time we are not afraid of anyone."
