Senegal reached the Africa Cup of Nations final for the second time as Tunisia defender Dylan Bronn’s extra-time own goal gave them victory.
The two sides had penalties spared in ordinary time before Bronn incidentally headed the main goal of the game.
Mouez Hassen tipped Sadio Mane’s free-kick on to Bronn’s head as Senegal – who face Algeria in Friday’s final – drew nearer to a first Afcon title.
Tunisia had a latepenalties grant upset by VAR.
After Salif Sane’s taken leeway ricocheted off Idrissa Gueye’s elbow, the arbitrator at first indicated the spot before upsetting his choice in the wake of evaluating video film.
Senegal dominated the first half, producing seven shots to Tunisia’s two, with Mane spurning their best opportunity when he missed an open goal.
Tunisia improved after the interval and was awarded a penalty when Ferjani Sassi’s effort struck Kalidou Koulibaly’s arm, but Sassi’s spot-kick lacked power and direction and was saved by Alfred Gomis.
Four minutes later Senegal was given a penalty of their own when Ismaila Sarr was brought down by Bronn, but Henri Saivet’s shot was kept out by Hassen.
The Tunisia goalkeeper then inadvertently gifted victory to Senegal, who will be without influential captain Koulibaly for the final as he is suspended.