Complex sentence: Huggel was in the squad for the 2010 FIFA World Cup, he was in the starting eleven for all three games, but after they were eliminated during the Group Stage, he announced his international retirement.
Split into simpler sentences: Huggel was in the squad for the 2010 FIFA World Cup, he was in the starting eleven in all three games. But after they were eliminated during the Group Stage, he announced his international retirement.