Complex sentence: Graziani attended Thomas Downey High School in Modesto, California, and as a senior quarterback, he passed for 3,956 yards and 35 touchdowns in his prep career while leading his team to a share of the Central California Conference title.
Split into simpler sentences: Graziani attended Thomas Downey High School in Modesto, California. As a senior quarterback, he passed for 3,956 yards and 35 touchdowns in his prep career while leading his team to a share of the Central California Conference title.