Complex sentence: He made his first start in the Premier League for Chelsea away against Birmingham City on Boxing Day and scored his first two goals for Chelsea against Watford in the FA Cup third round on 3 January 2010.
Split into simpler sentences: He made his first start in the Premier League for Chelsea away against Birmingham City on Boxing Day. He scored his first two goals for Chelsea against Watford in the FA Cup third round on 3 January 2010.