For the second time in a week, Cup of Nations hosts Tunisia have beaten fellow finalists Benin in a friendly match.
Francileudo dos Santos scored on his debut for Tunisia
The Tunisians left it late to overcome their visitors by two goals to one, and the narrow victory follows up their 2-0 win earlier in the week.
The match was arranged at the last minute after Tunisia's previous plans to play either Kenya or Zimbabwe were cancelled due to travel problems, and after Benin decided not to go to Libya for a warm-up game.
Tunisia's recently-naturalized Brazilian striker Francileudo dos Santos grabbed the opening goal just nine minutes into his debut for his new country.
Benin's equaliser came on the hour through midfielder Jocelyn Ahoueya.
Just when it seemed the match would end level, Tunisian defender Karim Saidi scored the winner in the last minute.
Nations Cup fever seems to have got to the people of Sfax with some 25,000 people turning to watch the friendly.
On Saturday, Tunisia kick the Nations Cup off with their clash against Rwanda while DR Congo and Guinea are the other teams in Group A.
Benin's campaign gets underway on 27 January when they play South Africa in Group D, and they then face Nigeria and Morocco.