Deila demands much from players and fans
Celtic manager Ronny Deila has warned they will have to be at their best to beat Champions League opponents Qarabag, pleading with the fans to help the team.
Celtic moved into the third qualifying round with a 6-1 win over Icelandic side Stjarnan but Deila says the Azerbaijani champions will be a major obstacle.
Qarabag were only denied a Europa League win over Inter Milan last season by a poor offside decision which cost them a place in the knockout stages.
Celtic also drew with Inter at Parkhead before going out 4-3 on aggregate and Deila has told his players they need a similar performance at Celtic Park on Wednesday in the first leg, appealing to supporters to fill the stadium to roar the Hoops on.
Deila, whose side host French outfit Rennes in a friendly today, said: "It's a big step up. We are talking about a very good football team who have done very well in the Europa League, so we have to be up at our Inter Milan level to beat them.
"We also need the fans in Celtic Park. That's so unbelievably important. We have the best fans in the world and we have to show that on Wednesday."