McMichael was arrested early Saturday morning in Columbia County after witnesses told police that he had given his wife, Cawanna, a bloody nose.
The 26-year-old McMichael was taken to the Columbia County Detention Center, where he was charged with simple battery and criminal trespass. McMichael was released just before 7 a.m. Saturday after posting a $2,200 bond, according to jail records.
"We certainly don't condone the conduct which has been alleged, and we recognize the seriousness of the charges; however, we will not make a specific comment about this matter until we gather more information," Dolphins coach Nick Saban said in a statement Monday.
According to the police report, McMichael acknowledged he had two glasses of wine and several beers before arguing with his wife, but he refused to take a field breathalyzer test.
Cawanna McMichael, 22, told police the contact with her husband was an accident as he was throwing some of her belongings out of their 1984 Cadillac Coupe de Ville.
Four witnesses told police they saw McMichael throw his wife from the car. One witness told police he saw the athlete throw his wife away from the vehicle several times, according to the report.
Cawanna McMichael was treated at the scene.
Prosecutors decided not to file charges after McMichael was arrested in June 2004 and accused of hitting his wife. McMichael had been charged with aggravated battery on a pregnant woman, a second-degree felony that is punishable by up to 15 years in prison.
In his third season with the Dolphins in 2004, McMichael caught a career-high 73 passes for 791 yards and four touchdowns.