Complex sentence: He also netted his first two league goals, in 1--1 draws against Mainz 05 and Hamburger SV, and would be Germany's undisputed starter at the 2006 FIFA World Cup, partnering with Werder Bremen's Per Mertesacker.
Split into simpler sentences: He also netted his first two league goals, in 1--1 draws against 1. FSV Mainz 05 and Hamburger SV, and would be Germany's undisputed starter at the 2006 FIFA World Cup, partnering with SV Werder Bremen's Per Mertesacker.