The duo were on Tuesday named in a 31-man squad by Nigeria manager Berti Vogts and are due to report to a training camp in Malaga, which will run from January 4, but Moyes understands Yakubu and Yobo will be given leave to carry out domestic duties before the three-week competition begins on January 20.
He said: "I do not have the information yet but I believe Nigeria are going to let players come back right up to the start of the tournament."
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