Phil Walsh had been the coach of the Adelaide Crows since 2014
Phil Walsh, the coach of the Australian Football League's Adelaide Crows, has been found dead at his home, South Australia Police say.
Officers had been called after a domestic dispute in the early hours of Friday. Mr Walsh, 55, was treated for knife injuries but died at the scene.
Mr Walsh's 26-year-old son has been arrested and charged with murder.
Mr Walsh's wife was taken to hospital after receiving non-life threatening injuries.
Police said that Mr Walsh had been stabbed multiple times and a knife was found at the scene.
There's been an argument, I can't tell you anything about the argument... but as a result of that both Mr Walsh and his wife received a wound and the wound ultimately caused Mr Walsh's death," a South Australia detective told reporters.
Police said the son, who was living with his parents, arrived home at about 02:00 local time (16:30 GMT on Thursday) and there was an argument.
Someone in the house called emergency services, who then called the police, said South Australian Police Superintendent Des Bray.
The son fled the incident but was found and detained for a psychiatric assessment.
He is under police guard in hospital.
Police told reporters at the scene that no-one else had been in the family home overnight.
Police are now gathering information from neighbours in Somerton Park, a seaside suburb of Adelaide.
Local media report that Adelaide Crows players have been gathering at the club's headquarters.
The team was scheduled to play Geelong on Sunday afternoon.
People have begun laying flowers outside the Adelaide Football Club in memory of Mr Walsh.
The club said in a statement it was devastated by his sudden death.
"We ask if you could please respect the privacy of his family, as well as our players, coaches and staff, at this extremely difficult time," the club said.
It will hold a media conference, on Friday.
Mr Walsh was formerly and Australian Rules footballer, playing for several clubs before starting his coaching career.