The islanders' coach Akbar Patel has three new faces in his squad for the match after they missed last week's first leg loss in Nouakchott.
The former Ghana coach will be unveiled on Tuesday according to EFF president Juinedi Basha.
Tottenham youngster Nabil Bentaleb has the ability to become one of the stars of the Algeria team, says fellow international Adlene Guedioura.
The 57-year-old, who has been in charge of South Africa since 2012, had always strongly denied the claims. He is now free to see out his contract, which is due to end in June
Manchester City midfielder Yaya Toure will be out for up to two weeks with a muscle injury picked up in Sunday's defeat by Liverpool.
Borussia Monchengladbach have signed Guinea international Ibrahima Traore from VfB Stuttgart for next season.
Roger Milla has lost his record as the oldest footballer to represent an African national team to 43-year-old Mauritius striker Kersley Appou.
Hosts Mauritania made the most of home advantage and included a number of young players in their side including the England-based left-back Ahmed Ahmedou.
DR Congo goalkeeper Robert Kidiaba believes his new role as a peace ambassador can help unite his country. "Being a peace ambassador is a daily struggle but we must support peace over hostility, especially among the young people." In his efforts to promote peace through football, Kidiaba can at least count on the support of TP Mazembe owner Moise Katumbi.
Ahmedou is confident Mauritania have the players to achieve a good result and make those fans happy.
AFRICAN CHAMPIONS LEAGUE 2016
2015 Champions: TP Mazembe
Holders TP Mazembe out of this year's competition.
Clubs qualified for the group phase:
• Zesco Utd
• Zamalek
• Entente Setif
• AS Vita Club
• Wydad
• Enyimba
• Al Ahly
• ASEC Mimosas
The draw for the group stage will be held on 24 May in Cairo, Egypt.
Algeria
Congo DR
Côte d'Ivoire
Egypt
Morocco
Nigeria
Zambia