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(130104) -- SINGAPORE, Jan. 4, 2013 (Xinhua) -- Switzerland tennis player Roger Federer attends a press conference in Singapore, Jan. 4, 2013. Roger Federer made a stopover on his way to Australia for the Austrialia Open held on Jan. 14. (Xinhua/Then Chih Wey)..****Authorized by ytfs**** (KEYSTONE/XINHUA/Then Chih Wey)