ZESCO United suffered a 1-0 defeat to Al-Hilal Al-Ubayyid in a 2017 CAF Confederations Cup clash at the Al-Ubayyid Stadium in Al-Ubayyid on Wednesday evening.
The result leaves things very tight in Group C after two rounds of fixtures.
Team Ya Ziko looked on course to grab a valuable point in Sudan, but Cheick Moukoro netted a late goal to secure all three points for the hosts.
Next up for the Zambian giants is a home clash against Recreativo do Libolo in Ndola while Al-Hilal Al-Ubayyid travel to Alexandria to take on Egyptian outfit Smouha.
Smouha beat Libolo 2-0 in Egypt earlier today.