2016-17 record: 24-5, 9-3 West Suburban Gold
Postseason results: Lost to Addison Trail in Class 4A regional semifinals.
Players to watch: Senior Ethan Schumer was one of last season's breakout players as he averaged nearly a double-double with 16.8 points and 9.4 rebounds per game.
Why they're in the power rankings: Coming off of a school-record 24-win season, Willowbrook returns its top six players from a team that had a shocking playoff exit against Addison Trail. Motivated to prove last season wasn't a fluke, the Warriors should remain on of the strongest teams in the Western Suburbs.
Did you know? Willowbrook doesn't have a lot of basketball history despite being open since 1959. The Warriors only have three regional titles to their credit, with the last one coming in 2004.