Barcelona still has a fair chance of winning Champions League claims Busquets.
The Blaugrana will be facing Bayern Munich at Camp Nou for their Champions League clash on Tuesday night.
The team would be without talisman Leo Messi who has won four European titles with Barca.
Without their record goalscorer, this would be a new chapter for the Barcelona team and Busquets admits that it was difficult to adjust after Messi’s departure.
“It was a shock, for everything that Leo gave to Barça and personally to me,” the 33-year-old said.
“It was an accumulation of emotions that were difficult to digest, but we have to try to change the story. We are at the beginning of the season and we’ll have to get used to playing without Leo.”
“Anything can happen in football. Chelsea won the Champions League last season and were not favourites,” Busquets added.
“We are here, excited and aware of the difficulty, but we have a lot of ambition and we want to win.”