Pete Sampras and Boris Becker, who played a stirring final three days ago in Germany, lost their opening matches at the Paris Open, with Becker denouncing the arena as a "zoo" and "madhouse."
Marc Rosset reeled off 20 aces and clocked one serve of almost 129 mph to beat Sampras, the top seed and defending champion, 6-4, 6-4.
Becker lost to Carlos Moya of Spain, 6-3, 5-7, 6-4, then complained bitterly.
"What I've experienced today put me in a state of shock. I am sorry," Becker said.
"If people, especially in that hall behind the server, are constantly moving, screaming, laughing, getting up, it's impossible to play great tennis."