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However he lost regular position for spinal disc herniation in 2010 and he could not play at all in the match behind new member Yohei Nishibe in 2011 .
 spinal disc herniation, Yohei Nishibe
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:
 spinal disc herniation, Yohei Nishibe