Complex sentence: On 4 February 2017, Chelsea beat Arsenal 3--1, former Arsenal captain Cesc Fàbregas scored the Chelsea's third goal, after an error by ex-Chelsea goalkeeper Petr Čech.
Split into simpler sentences: On 4 February 2017, Chelsea beat Arsenal 3--1. Former Arsenal captain Cesc Fàbregas scored the Chelsea's third goal, after an error by ex-Chelsea goalkeeper Petr Čech.