Woe for Robredo and Monfils

Seeded pair Tommy Robredo and Gael Monfils were the early casualties at the Cincinnati Masters on Monday, both men falling in the opening round.

Number 13 seed Monfils, of France, was beaten 6-4 6-7(5) 7-6(2) by unseeded Ivo Karlovic of Croatia in a lenghty clash in Ohio.

Spaniard Robredo, meanwhile, was seeded 15th but looked completely out of sorts against Frenchman Jeremy Chardy as he fell 6-3 7-5.

Ninth seed Gilles Simon cruised into the second round against Wayne Odesnik, winning 6-3 6-2 while Marin Cilic, the 14th seed, beat Juan Carlos Ferrero 6-3 6-4.

Qualifier Ivan Ljubicic produced an impressive win over Frenchman Florent Serra. The Croat lost the first set 6-4 but took the following two to win 4-6 6-3 6-4.

Russian Igor Andreev beat Nicolas Kiefer 6-1 7-5, while Benjamin Becker strolled past Martin Vassallo Arguello 6-3 6-3 and Israel's Dudi Sela retired hurt against Nicolas Almagro.

Viktor Troicki was also forced to concede, handing 16th seed Radek Stepanek the win, while Marat Safin saw off American Robby Ginepri 7-5 7-6(2).

Jose Acasuso made light work of qualifier Lukasz Kubot 6-4 6-3, Paul-Henri Mathieu recovered to defeat Mischa Zverez 6-7(4) 7-5 6-3 and David Ferrer completed an impressive win over Stanislas Wawrinka to claim a 7-5 6-2 triumph.