The 66-year-old Hammel was courtside during the Tech-Texas A&M game Thursday when he was stricken. He is a close friend of Tech coach Bob Knight and co-authored Knight's pending autobiography, "Knight: My Story."
After the game, Knight was taken by patrol car to St. Luke's Hospital to be with Hammel. Carter said Hammel told him he might leave the hospital Friday.
Hammel was the sports editor for the Herald-Times for 30 years before retiring after the 1996 Olympics.