School: Marian Catholic
2015-16 record: 23-6, 8-1 in the East Suburban Catholic Conference
Postseason results: Lost to Simeon, 62-57, in the Class 4A Bloom Sectional semifinals
Players to watch: Junior guards Chase Adams and Brandon Hurt are both back after starting last season while 6-foot-8 TeeAaron Powell is an experienced returnee who should help inside.
[RELATED: CSN Preps Basketball Power Rankings - No. 18 Stevenson]
Why they're in the Power Rankings: Incredibly young last season, the Spartans were still a top-25 mainstay as plenty of that talent returns this season. Adams and Hurt will be one of the best backcourts in the area.
Did you know?: The most famous recent Marian Catholic alum, Tyler Ulis, has a brother entering the program this season as Ahron Ulis is a 5-foot-10 freshman.