Ghanaian Francis Coffie put semi-final debutants Merreikh ahead against four-time African champions Mazembe as half-time drew near. Thomas Ulimwengu, one of two Tanzanians in the multi-national line-up of the Congolese outfit, levelled on 77 minutes.
The first leg of the other semi-final will also be played in Omdurman with Al Hilal of Sudan hosting USM Alger of Algeria Sunday at a different stadium.