Marat Safin Archive
Here's an article on the China Open site about Marat holding his retirement ceremony there, along with the release Main Draw Entry List.

"On the women’s side, the first wild card goes to Belgium player, former world No. 1,Kim Clijsters. On the men’s side Marin Cilic from Croatia, Marat Safin from Russia, and Marcos Baghdatis from Cyprus received the three wild cards. All the past champions at China Open since 2004 are most likely to meet again at China Open.

Marat Safin had confirmed to hold his retirement ceremony at China Open. He expressed his affection and gratitude for China Open in his letter to the Chinese fans: “I had great experience at China Open last time I was there, and to win the champion at China Open is very important moment for me as well. I am very happy I will be back to Beijing this October to participate the first year of newly upgrade China Open, I would like to invite you all come and witness this great tournament with me at Olympic Stadium. And I also like you all be there and spend one of my memorable time with me at China Open.”

“Marat Safin has several options to hold his retirement ceremony after the US Open, including Beijing, Shanghai, Paris and Moscow,” said the player manager of China Open Organizing Committee, “and yet he chose China Open to bid farewell to all his fans around the world.” Safin means a lot to China Open and China Open also witnessed Safin achieving his best accomplishments. To bid farewell at China Open is to show his gratitude for his fans in China and in Asia. Fighting in the same stadium with his sister Safina undoubted means something special for him, noted the manager.

I thought Bercy was the place to say it formally. Well plans change....