In 2000 , Manchester United competed in the inaugural FIFA Club World Championship in Brazil .
In 2000 , Manchester United won the league again in the 1999 - 2000 and 2000 - 01 seasons .
In 2000 , Manchester United competed in the inaugural FIFA Club World Championship in Brazil , and won the league again in the 1999 - 2000 and 2000 - 01 seasons .