Sir Alex Ferguson's side - attempting to become the first team to win back-to-back Champions League crowns - lost 2-0 to Pep Guardiola's free-flowing Catalans courtesy of goals from Samuel Eto'o and Lionel Messi.
And Robinho, who joined the Eastlands oufit from Real Madrid last summer, has revealed he was rooting for his former club's arch-rivals, rather than his current ones.
"I was cheering for Barca. First, because I have friends there and also because United are our biggest rivals," he said in The Sun.
"I was sure Barca would prove they are Europe's best team.
"Not just Europe, they have the greatest and most powerful squad in the world."
And the Brazilian took a second swipe at the Premier League and Carling Cup champions, by insisting their is no contest in the Ronaldo vs Messi debate.
"Messi proved without a doubt he's the best," he said.
CITY FANS! Check FourFourTwo.com’s ever-expandinginterviews archivefor more stuff to read:
One on One Sven Goran Eriksson
Web Exclusives Joe Corrigan
Q&A Robinho
Boy's A Bit Special Michael Johnson
Ask A Silly Question Peter Reid, Alan Ball
What Happened Next? Jim Whitley, Tony Cunningham
Sing When You’re Winning David Threlfall
Plus Joe Corrigan on Weekend Wonders and City on Talentspotter
UNITED FANS! Check FourFourTwo.com’s ever-expandinginterviews archivefor more stuff to read:
Web Exclusives Wayne Rooney, Peter Schmeichel, Carlos Tevez
Q&A Wayne Rooney, Cristiano Ronaldo, Ruud Van Nistlerooy
One on One David Beckham, George Best
Ask A Silly Question Bryan Robson
Boy's A Bit Special Danny Simpson
Perfect XI Garth Crooks, Bryan Robson, Sir Bobby Charlton, Eric Cantona
What Happened Next? David May, Norman Whiteside
Sing When You’re Winning Dominic Monaghan, Ian Brown
And Another Thing Being a Big Four fan
