Masters Tennis - day one in pictures

World number one Andre Agassi celebrates his win over Morocco's Hicham Arazi

Martina Hingis battles her way to beat Barbara Schett of Austria

Pete Sampras back in winning ways against David Prinosil of Germany

Serena Williams breezes through her first round match against Magdalena Maleeva of Bulgaria

Wimbledon champ Venus Williams cruises past Aussie Rachel McQuillan

Lindsay Davenport serves up something special against fellow American Lisa Raymond

France's Natatlie Dechy causes an upset, ousting number ten seed Arantxa Sanchez-Vicario