Algeria captain Yazid Mansouri has been dropped from their team to face Slovenia on Sunday following recent poor performances.
Mansouri's form has been the subject of much debate, with team-mate Karim Ziani lending his support to his captain after the 32-year-old was criticised by the countries supporters.
Coach Rabah Saadane has otped for 28-year-old Medhi Lacen in the Algeria midfield ahead of Mansouri.
"It was difficult for Mansouri because he is such an important player in this team, but I am at the World Cup and I have to make a decision based on tactics and football. He is not in good form at the moment,'' Saadane said.
Algeria will also face England and the United States in Group C.