Chelsea faces the biggest test of its season when it hosts Barca in the first leg of its semi-final clash.
The game brings back memories for most Chelsea fans of the controversial 2009 clash at the same stage in the competition when it was denied up to four plausible penalties before
Fabregas returned to the Nou Camp last northern summer after an eight-year spell at the
Fabregas was involved in a fracas with
"The previous night we'd lost the semi-final with Arsenal at Manchester United so I was still a bit upset," Fabregas recalled.
"But I was at home with my family that night. We were about to play PlayStation (believing Chelsea were going through) and then that goal (by Iniesta) was scored.
"It was really happy memories because my whole family are Barcelona supporters."
Many had predicted that with the likes of Xavi and
The midfielder says he has matured in to a much better player since his return to Catalonia, and even claims he may have been tactically naive during his time in the Premier League.
"I've learned a lot tactically, personally," he said.
"I know my position on the pitch a lot more. Before I was free to do whatever on the pitch at Arsenal, and I wasn't tactically good.
"I was playing wherever I wanted, up and down. Here I have to work much more for the team, individually, and think about the team tactically."
Despite spending eight years at Arsenal, Fabregas only managed to win one piece of silverware - the 2005 FA Cup.
With Barca, however, he has the chance to create history in his first campaign back at the Nou Camp.
Pep Guardiola's side is favourite to become the first team in history to retain the Champions League and Fabregas also has the privilege of being part of a team that contains the likes of
"The move has been much better than I expected," Fabregas said.
"I played much more than I expected. I came here to learn, to get better as a player and a person, and also to experience weeks like we start tomorrow.
"We have Chelsea in the semi-finals of the Champions League and then play against Real Madrid in a game which, if we win, we are back in the title race; then against Chelsea again.
"Hopefully we will win all the games and to win the Champions League in my first year at Barcelona would be a dream come true."
Chelsea struggled under
Fabregas has been impressed with how the former West Bromwich Albion boss has fared, claiming his more direct approach has been key to its recent revival.
"What happened with Villas-Boas was they played more from the back," Fabregas added.
"They tried to keep possession and take initiative in the game.
"They've gone back to the type of
UEFA Champions League
Borussia Dortmund centre-back