Mathieu upended in Hamburg

Sports Network

, Last Updated: 4:39 PM ET

HAMBURG, Germany -- Paul-Henri Mathieu, who was defeated in the final of last year's event, was upset by qualifier Pere Riba on the first day of play at the 2010 Hamburg Open.

Mathieu won the first set handily, 6-1, but then was outplayed by the Spaniard, who won the next two sets, 6-0, 6-3.

The Frenchman struggled with his serve, landing only 47% of his first serves, while Riba landed 68% of his.

Italian Simone Bolelli, another qualifier, knocked off Germany's Simon Greul, 7-6 (7-4), 7-6 (7-4) to advance to the second round behind nine aces. Greul, a native of Stuttgart, had advanced to the quarterfinals in last year's event.

Florent Serra of France defeated Kazakhstan's Evgeny Korolev, 7-6 (9-7), 6-3 to advance to the second round and a meeting with top seed and defending champion Nikolay Davydenko.

Also on Monday, Florian Mayer of Germany bested Pablo Cuevas of Uruguay, 6-4, 6-1; Italy's Potito Starace got by German Bjor Phau, 7-5, 6-0; Jan Hajek turned back another German, Andreas Beck, 6-3, 4-6, 7-5 and Kazakhstan's Andrey Golubev was able to beat yet another German, Mischa Zverev, 7-5, 6-1.

France's Jeremy Chardy knocked off Marco Chiudinelli of Switzerland, 6-4, 6-1; Fabio Fognini of Italy squeezed past Spain's Ruben Ramirez Hidalgo, 7-6 (7-4), 6-4; Jarkko Nieminen of Finland edged Belgium's Christophe Rochus, 6-3, 7-6 (8-6) while Maximo Gonzalez of Argentina toppled Christophe's brother Olivier Rochus, 6-4, 5-7, 6-2 and Denis Istomin of Uzbekistan stopped Czechoslovakia's Lukas Rosol, 3-6, 6-4, 6-3.


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