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One prominent player that did not stay for the Open was French Open champion Yvegeny Kafelnikov , who after being dropped three spots from his ATP ranking to a seventh seeding , withdrew and returned home to Russia .
 ATP, Russia, Yvegeny Kafelnikov, Open, French Open
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 ATP, Russia, Yvegeny Kafelnikov, Open, French Open