The inclusion of the quartet has sparked off controversy as the four players were part of the Nigerian team to the 2011 AYC in South Africa and the Fifa Under-20 World Championships in Colombia.
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Some argue that the players should have been excused from the 2013 AYC to make way for players yet uncapped at Under-20 level.
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Obuh has now moved to explain the rationale behind his decision stating that the players are still relevant to his plans and also within the age limit for the competition.
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"These players are still under the age of 20 and still very much relevant to my plans. Besides, they are not currently playing for any of the national teams so I believe it is proper to include them in my side," Obuh told supersport.com on Thursday.
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Nigeria are the reigning AYC champions and will open their campaign against Mali at the Stade Ahmed Zabana, Oran on March 17.
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Three days later, the Flying Eagles will face Gabon at the same venue before rounding off their preliminary campaign against DR Congo on March 23.