Complex sentence: Aduriz again proved influential for his team on 5 November, scoring one goal and assisting a further two in a 5--1 defeat of FK Partizan in the Europa League group stage--in the process, he reached the 100-goal mark with the club.
Split into simpler sentences: Aduriz again proved influential for his team on 5 November, scoring one goal and assisting a further two in a 5--1 defeat of FK Partizan in the Europa League group stage. In the process, he reached the 100-goal mark with the club.