sentences:  The Italian national team was initially unsuccessful in world tennis, only winning twenty ties in the first two decades of competition never reaching past the quarterfinals since 1999, but in recent times they have become of the most successful teams in the world.They have been a regular member of the ITF rankings World Top Ten since the initiation of the rankings in 2002, and became one of five teams to reach the World No.1 position in 2009, after they managed to reach all but one final from 2006 to 2010.