2001 Tennis Masters Cup was a tennis tournament played on indoor hard courts . It was the 32nd edition of the year-end singles championships and was part of the 2001 ATP Tour . The tournament was held at the Sydney Superdome in Sydney , Australia from 12 November through 18 November 2001 . The doubles competition was set to take place in Bangalore , India but was cancelled because of security fears following the September 11 attacks . A competition was held in early 2002 , but it did not provide any ranking points and was held as the ATP World Doubles Challenge Cup
September 11 attacks
September 11 attacks
2001 Tennis Masters Cup