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Junior Slam results : Australian Open : 2R ( 2005 ) French Open : 2R ( 2005 ) Wimbledon : W ( 2005 ) US Open : F ( 2005 ) 2006 – 2008 Chardy made his Grand Slam debut in 2006 , receiving a wild card at the French Open , where he beat Jonas Björkman in straight sets in the first round , before losing in four sets to fifteenth-seeded David Ferrer in the second round .
 Chardy, Jonas Björkman, David Ferrer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chardy, Jonas Björkman, David Ferrer