Arop had eight rebounds with 3-of-7 3-point shooting while Cummings was 4 of 5 from long distance.
Khristian Smith's 3-pointer with 4:05 left in the first sparked a 30-9 Sycamores run that ended on Arop's 3-pointer and a 54-34 lead early in the second. During that run, Indiana State was 10 of 14 from the field, including 8 of 12 from 3-point range.
John Jones made two free throws with 4:15 left in the first to give Illinois State a 25-24 lead, but the Redbirds quickly fell behind and never challenged again.
Leaving early for the NBA is a risky decision. Some players -- Skal Labissiere, Dejounte Murray -- slid in the draft. Some -- Isaiah Taylor, Troy Williams -- weren't drafted at all.
College basketball coaches across the country will hit the recruiting trail hard in July to target the Class of 2017's top prospects. Which players are the nation's top programs targeting?
The Tar Heels could lose Justin Jackson and Kennedy Meeks after next season. Coach Roy Williams has nearly every top-10 2017 prospect on his board.