Manchester United legend Michael Carrick has identified the biggest regret of his playing career at Old Trafford as the defeat in the Champions League final by Barcelona in 2009.
Sir Alex Ferguson's side travelled to Rome looking to become the first side to defend the Champions League since AC Milan in 1990.
However, Barcelona secured a victory that marked the starting point of Pep Guardiola's ascension as one of the world's greatest managers, with his side in Catalonia establishing themselves as one of the greatest ever.
Carrick believes there was an opportunity for United to achieve something remarkable in that game though and admitted he looks back on the match with some regret.
"Being us, we celebrated that night [after winning the Champions League in 2008], flew back the next day and that was it, onto the next challenge," he told the club's official website.
"We won the league again the next year, won the Club World Cup, won the League Cup, almost won the Champions League again.
"We should have beaten Barcelona in Rome – that’s the one that got away, for me – but that doesn’t change what a special group of players that we had. We were absolutely relentless."
