Results on Monday at the 2.61-million-dollar Cincinnati Masters ( dpa ).
First round
Tommy Robredo, 12, Spain, def. Mardy Fish, US, 6-2, 6-2
Ivo Karlovic, 16, Croatia, def. Thomaz Bellucci, Brazil, 6-3, 6-4
Ernests Gulbis, Latvia, def. Jarkko Nieminen, Finland, 7-6 (9-7), 6-2
Sam Querrey, US, def. Paul-Henri Mathieu, France, 6-4, 4-6, 6-3
Andreas Seppi, Italy, def. Feliciano Lopez, Spain, 7-5, 7-5
Robin Soderling, Sweden, def. Julien Benneteau, France, 6-0, 6-3
Philipp Kohlschreiber, Germany, def. Michael Yani, US, 6-3, 6-4