The African Football League quarter-final second legs scheduled for Tunisia and Morocco on Wednesday were postponed until Thursday without an official explanation.
TP Mazembe of the Democratic Republic of Congo will defend a 1-0 lead away to Tunisian club Esperance while Moroccan giants Wydad Casablanca have a 1-0 lead and home advantage over Enyimba of Nigeria.
The aggregate winners of the two ties are due to meet in the semi-finals with the first leg in Morocco or Nigeria on Sunday and the return match next Wednesday.
Record 11-time CAF Champions League winners Al Ahly of Egypt meet South African side Mamelodi Sundowns in the other semi-final.
