Complex sentence: Gradkowski is a 2001 graduate from Seton-La Salle Catholic High School in Pittsburghand played as a member of the Seton-La Salle Rebels from 1997 to 2000 in the Western Pennsylvania Interscholastic Athletic League (WPIAL).
Split into simpler sentences: Gradkowski is a 2001 graduate from Seton-La Salle Catholic High School in Pittsburgh. He played as a member of the Seton-La Salle Rebels from 1997 to 2000 in the Western Pennsylvania Interscholastic Athletic League (WPIAL).