Jay LaPrete, Associated Press
This photo taken on Wednesday, Sept. 11, 2013, and provided by Ohio State university shows college football player Kosta Karageorge in Columbus, Ohio. Teammates and coaches of the walk-on Ohio State football player who disappeared and was found dead four days later joined the mourners at his funeral Wednesday.

COLUMBUS, Ohio — Teammates and coaches of the walk-on Ohio State football player who disappeared and was found dead four days later joined the mourners at his funeral Wednesday.

Teammates of Kosta Karageorge quietly filed into Annunciation Greek Orthodox Cathedral in Columbus. Among the first people to step off one of the team busses was defensive line coach Larry Johnson, Karageorge's position coach.

Police said Karageorge, 22, was found dead of an apparently self-inflicted gunshot wound to the head on Sunday. He had been missing since Nov. 26.

Fellow football players have described Karageorge as a hard-working and enthusiastic athlete who often stayed for extra practice. He also was a college wrestler.

Athletes from other sports also planned to attend, said Ohio State spokesman Jerry Emig. Football teammates are expected to wear a helmet sticker with Karageorge's No. 53 during Saturday's Big Ten championship game against Wisconsin in Indianapolis.

Dr. Anahi Ortiz, the Franklin County coroner, had not ruled on the manner of his death.

Karageorge's mother told police he had had several concussions. The coroner said a special examination will be done of Karageorge's brain to look for any traumatic injury.

Karageorge was a Buckeyes wrestler for three years, and joined the football team as a walk-on at defensive tackle this season. The senior hadn't played any games and was known as a "scout team" member, meaning he took the role of an opposing team member during the regular starters' weekday practices.

His body was found by a woman searching trash bins near her neighborhood for scrap metal to sell.

Karageorge's family plans a private burial in Athens County.