Complex sentence: He made his Premiership debut for Arsenal against Fulham in the 2001--02 season, replacing Thierry Henry in a 4--1 victory, and he scored his first goal in a 5--2 victory over West Bromwich Albion on 27 August 2002.
Split into simpler sentences: He made his Premiership debut for Arsenal against Fulham in the 2001--02 season, replacing Thierry Henry in a 4--1 victory. He scored his first goal for the club the following season, in a 5--2 victory over West Bromwich Albion on 27 August 2002.