Who was the winner of 2006 men singles Tennis Masters Cup?

Question

The Tennis Masters Cup is a tennis tournament played at the end of each year, involving the top eight players in the men's tennis world rankings.Does anyone know that who was the winner of 2006 men singles Tennis Masters Cup?

Answer 1

Roger Federer played well throughout the season and Roger Federer was the winner of 2006 men singles Tennis Masters Cup.