Former Manchester United midfielder Anderson has blamed a knee injury for his failed career at the club following his move to Internacional.
The 26-year-old brought to an end an eight year association with Man United after announcing his move to Brazil.
Anderson said he is grateful for what Man United did for him but believes his quick return from a knee complaint contributed to a loss of form at Old Trafford.
Speaking about his Man United career, Anderson said: “I played for eight years for Manchester and I would like to thank the club.
“In my first four years I won everything there – the (UEFA) Champions League, Premier League and (the FIFA Club World Cup).
“I had a knee injury and returned to play again too fast. I played but the knees were not equal and I got myself injured again.”
Anderson joined Man United from Porto in a £26m move and showed promise during an encouraging debut season for Man United but his performance levels rapidly deteriorated and he became something of a joke figure at the club.
A combination of injuries, loss of form and lack of motivation all contributed to his fall from grace but Anderson remains a popular figure in the dressing room and a number of current Man United players wished him well at Internacional.
Anderson arrived at Man United with so much promise but left it unfulfilled and will be remembered as one of the most disappointing signings of Sir Alex Ferguson’s career.