Complex sentence: Mansouri was a member of the Algerian team at the 2010 World Cup but lost the captaincy and a spot in the starting line-up prior to the first group game against Slovenia.
Split into simpler sentences: Mansouri was a member of the Algerian team at the 2010 World Cup. However, he lost the captaincy and a spot in the starting line-up prior to the first group game against Slovenia.