Consequently Malawi finish top of Group B and East African guest nation Kenya claim the runners-up spot.
Friday’s semi-final line-up therefore sees South Africa take on Kenya (13h00 local, 09h00 GMT) and Malawi play Namibia (16h00 local; 12h00 GMT) for a place in Sunday’s final.
Zambia had willingly submitted both players for re-testing in Mauritius after complaints from two countries.
The pair had been tested, along with the rest of the squad, in Zambia prior to their arrival at the tournament, as is mandatory for all players competing at the CAF Under-17 Qualifiers and U17 Youth Championships Final Tournament, but information sourced later from Confederation of African Football (CAF) indicated that these tests were incorrectly done.
The re-tests carried out in Mauritius revealed the players were not eligible to compete.
MRI scans have become standard in assessing the age of players in this age-group with a 99 percent accuracy.
Every bone in the arm and leg has an end plate from which bones grow. When the growth is completed (usually around the age of 17), then this end plate disappears on the MRI scans.
If it can be seen on the MRI scans, then it is proof that the player is 17 or younger.