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The episode included interviews with NFL greats such as Emmitt Smith and Christian Okoye who were featured in the original game , as well as modern NFL players such as Philip Rivers who discuss their passion for the game .
 NFL, Emmitt Smith, Christian Okoye, NFL, Philip Rivers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 NFL, Emmitt Smith, Christian Okoye, NFL, Philip Rivers