Complex sentence: His high school career totals were 36 catches for 745 yds and 9 TD's, eight kickoffs returned for scores (plus eight more returned for touchdowns that were called back for penalties), and eight INT's with 3 returned for scores.
Split into simpler sentences: His high school career totals were 36 catches for 745 yds and 9 TD's. He had eight kickoffs returned for scores (plus eight more returned for touchdowns that were called back for penalties), and eight INT's with 3 returned for scores.