A solitary strike from Yacine Salhi sealed a 1-0 win for Mouloudia Olympique de Béjaïa over Young Africans in a Group A 2016 Caf Confederations Cup clash on Sunday evening.
Yanga ended the clash at the Stade de l'Unité Maghrébine with 10-men. Hajji Mwinyi received his marching orders in stoppage time for a second bookable offence.
The Crabs opened the scoring on 20 minutes. A superb outside of the boot cross by Ismail Belkacemi steered home on the volley by Salhi, who was perfectly positioned at the back post.
Yanga overpowered their hosts in the second-half, but were unable to find a way past Chamseddine Rahmani as MOB held on for all three points.
The Tanzanian league champions are set to return to Antalya, Turkey in preparation for their clash against TP Mazembe in Dar es Salaam later next week.
Mazembe top the group after round one following a 3-1 home win over Ghana side Medeama in Lubumbashi.