Nkana FC inflicted a first loss of the season on Zesco United after picking up a 1-0 win at home on Saturday in a rescheduled Faz Super League tie.
The reigning champions scored what could have been an opener in the 67th minute but referee Jan Sikazwe ruled out Quadri Kola's goal at Nkana stadium.
But Nkana won a free-kick in the 78th minute and Idriss Mbombo managed to beat Zesco United's goalkeeper Ntibahezwa Dieudonne with a clever yet powerful strike.
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Kola was unfortunate again as his injury-time shot hit the post and several late attempts by Team Ya Ziko could not help them avoid defeat.