BBC Sport, Alexandria
Francileudo Dos Santos (right) celebrates his leveller for Tunisia
African champions Tunisia survived a first-half scare to come from behind and beat Zambia 4-1 in Alexandria.
Brazilian-born Francileudo dos Santos, who was denied some close-range chances, scored a hat-trick, while defender Riadh Bouazizi had put the Tunisians ahead earlier in the second-half.
James Chamanga gave Zambia a ninth-minute lead after he pounced on a defensive blunder between goalkeeper Ali Boumnijel and Hatem Trabelsi.
Chamanga controlled outside the Tunisian box, after a moment of indecision, to put the ball into an empty net.
But Santos equalised for Tunisia in the 35th minute with a glancing header after Chedli succeeded in keeping the ball in play.
His second goal came in the 82nd minute when he sliced home from a similar close-range position from which he had missed earlier on.
Santos completed his hat-trick in added time with another easy finish into an empty net.
Bouazizi scored with a close range header to put Tunisia in the lead in the 51st minute.
Zambia keeper George Kolola prevented more goals going in as he stood between Santos and his net earlier on.
In the fifth minute, Kolola narrowed the angle and blocked the shot after Santos moved clear into space inside the box.
Kolola stopped the Tunisian in the 59th minute, stretching to his left to prevent a third goal.
The scoreline is emphatic enough to suggest a Tunisian domination but it was like any other game for Zambians who amazingly measured on equal footing with the African champions.
But while the Zambians confidently displayed flair, the Tunisians were purposeful and created more chances.
However, there were opportunities for Collins Mbesuma to reduce the tally and later Chamanga hit one from long range which Boumnijel pushed over the bar.
Mbesuma headed wide at the near post and in the first-half his last touch was feeble ato beat Boumnijel.
Although taken by surprise by the Zambian performance, the African champions did not disappoint overall.
Zambia, meanwhile, could hold their heads high and will certainly be exciting to watch in their next two games.