The Desert Foxes face a vital clash with Tunisia in their second game after failing to beat Zimbabwe and needing a late goal to secure a draw
Algeria coach Georges Leekens criticised his team's failure to press Zimbabwe after the opening game of Group B at the Africa Cup of Nations ended in a 2-2 draw.
Riyad Mahrez gave Algeria a 12th-minute lead at Stade de Franceville, before Zimbabwe raced into the lead through goals from Kudakwashe Mahachi and Nyasha Mushekwi.
Algeria's blushes were spared when Mahrez struck again eight minutes from full-time to make it 2-2 but Leekens was less than impressed by his side's first half performance.