However, Larsson has conceded that the absence of goalkeeper Victor Valdes is a blow to their chances.
He told Perform: "The current team is very good, they were a little bit unlucky to get Victor Valdes injured and out for the rest of the season because I rate him as a very solid goalkeeper.
"You don't get to see that very often because more often than not Barcelona is having the ball so you don't appreciate how good he is until you train with him week in and week out for a long time, because then you know he is a very good goalkeeper.
"The team has everything really to go very far and maybe even win the Champions League but when you come to this late stage in the Champions League, you can have as much quality as you want but you need that little bit of luck as well in order to get the trophy."
Larsson represented Barca from 2004 until 2006.