Top seed Davydenko falls at China Open

　　BEIJING (TICKER) -- Top seed Nikolay Davydenko was stunned by unseeded Croatian Marin Cilic in second-round play at the $500,000 China Open, 6-3, 6-4 on Wednesday.

　　It is another tough blow for the fourth-ranked Davydenko, who is playing under suspicion for irregular betting patterns during a match in which he retired from in July.

　　Also seventh-seeded Frenchman Jo-Wilfried Tsonga was upset by wild card Nicolas Kiefer of Germany, (7), 6-3, 6-4.

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