There was better news for coach Tito Vilanova on Alexis Sanchez, who missed Barca's 4-win at Getafe on Sunday after returning from international duty with Chile with a minor leg muscle tear.
Although he has not been given the all-clear by medical staff, he was included in the 19-man squad for the match at the Nou Camp, Barca said on their website.
Barcelona must hit the ground running in Europe's elite club competition after sometimes labouring to progress in previous seasons, Vilanova told a news conference on Tuesday.
"In the Champions League you have to be on your guard from the start. We know this from experience because we have suffered in the past during the group stage," he said.
"The first match at home is very important so you don't start on the back foot. Barca have felt very comfortable in the Champions League in recent years but we know it's tough. The key thing is to take each game at a time."
"If we have the good fortune to get to this stadium that holds such good memories for us then we talk about it," he said. "Right now it's too soon."
"There is no point in looking backwards, either when you are winning or when you are losing," Vilanova said.
"It's a different competition, I'll talk about La Liga again on Friday.
