The IU Police Department responded to a call for medical assistance for a non-member of Phi Sig at the fraternity house on Friday, IUPD Chief of Police Keith Cash said in an e-mail.
The man was then transported to Bloomington Hospital, Cash added.
IFC members wouldn't comment on the details of the incident.
Cash said in the e-mail that he believes the man is still in the hospital’s care. IUPD is investigating the cause, but currently do not have signs of foul play.
The decision to postpone events was made by IFC and Panhellenic Association officers Saturday, Vollmer said.
IFC and PHA serve as leaders of the fraternities and sororities within the greek community.
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IU will look to keep a defensive shutout for the 10th-straight match.
IU started strong to begin the 2017-18 season.
Gros Louis came to IU in 1964 and ended his career in Bloomington as University chancellor emeritus.