Roy Keane admits that Manchester United should be "pretty ashamed" of their decision to pull out of the FA Cup in 2000 when they were defending champions - instead choosing to play in the Club World Cup . The Red Devils had won the domestic cup as part of their famed treble in 1999, but became the first team ever not to even attempt to defend their crown the following year. They instead chose to to play in the inaugural World Team Championship, now known as the Club World Cup. United accepted