The two-time national champion is 94 years old.
Parseghian coached at Notre Dame from 1964-74, compiling a record of 95-17-4 and winning national titles in 1966 and 1973. He also coached at Miami (OH) and Northwestern.
Per a Chicago Tribune report, an infection in Parseghian's hip is the cause of his illness.
Here are the details:
Parseghian is recovering at a nursing care facility near Notre Dame's campus after suffering an infection in a hip that has undergone five operations. Surgery is not deemed an option for Parseghian, 94, who is on an intravenous antibiotic.
Parseghian is not taking visitors, but friends have been sending cards and notes of encouragement to his home in Granger, Ind.
It isn't just the football field where Parseghian has made an impact. He founded Ara Parseghian Medical Research Foundation in 1994 and has actively pursued a cure for multiple sclerosis, which his sister and daughter both were diagnosed with.
Our thoughts and prayers are with his family.