Zambia coach Wedson Nyirenda has said the Chipolopolo will not let their doubleheader win over Algeria make them overconfident ahead of their October clash with Nigeria in Uyo.
Zambia head into this match on the back of a 3-1 home and 1-nil away victories over Algeria in September.
The team kicked off preparations on Monday with the home-based players available for the first week of camp before the foreign-based call-ups join them in Lusaka this Sunday.
Nigeria have also named 23 players for the clash.
The Eagles lead Group B on 10 points, 3 ahead of Zambia whom they beat 2-1 in the first leg in Ndola last October.