Complex sentence: He made his debut in a 1--0 defeat at home to Blackpool and continued at left-back for the final game of the season away to Plymouth Argyle which ended in a 2--1 win for Peterborough.
Split into simpler sentences: He made his debut in a 1--0 defeat at home to Blackpool. He continued at left-back for the final game of the season away to Plymouth Argyle which ended in a 2--1 win for Peterborough.