Tunisia are the new leaders of Group B at the Africa Cup of Nations.
The Eagles of Carthage climbed to the summit thanks to a 2-1 win over Zambia.
Southampon forward Emmanuel Mayuka gave Zambia the lead on 55 minutes.
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But Ahmed Akaichi leveled for Tunisia at a set piece and captain Yasine Chikhaoui headed in the winner two minutes from time.
The other two teams in the group, the Cape Verde Islands and Congo, meet later this evening.