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A product of Club Atlético Vélez Sarsfield 's youth system , he made his first-team debut in a 0 – 1 away defeat against Newell 's Old Boys on 4 March 2006 .
 Club Atlético Vélez Sarsfield, Newell 's Old Boys
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Club Atlético Vélez Sarsfield, Newell 's Old Boys