Chipolopolo Boys coach Avram Grant has drafted in Andrew Phiri and Gift Mphande.
Phiri and Mphande have replaced injured duo Evans Kangwa and Kelvin Kapumbu.
Phiri is currently the leading top scorer in the Zambian Super League with 7 goals.
The Muza striker has scored 9 goals in all competitions.
Mphande is on loan in Israel.
Zambia host Congo Brazaville this Friday in a FIFA World Cup qualifier at Ndola’s Levy Mwanawasa Stadium.
Zambia will then travel to Morocco and face Niger on match day 2 next week.
Morocco and Tanzania are the countries in the group while Eritrea withdraw.