The Dallas Police Department has completed Johnny Manziel's domestic violence investigation and referred the case to a grand jury, which will decide whether the Cleveland Browns quarterback will be charged.
Manziel, who is expected to be released by the Browns in March, is accused of hitting and threatening to kill ex-girlfriend Colleen Crowley in January.
Crowley's attorney, Kathy Kinser, said she was struck on the side of her face and suffered a ruptured eardrum during the altercation that began at the Zaza Hotel in Dallas.
Kinser maintains that Crowley is still unable to hear out of that ear.
"The investigation of the domestic violence assault involving Jonathan Manziel, which occurred on January 30, 2016, has been completed," officials said in a statement on Thursday.
"Today, a Class A misdemeanour Assault/Domestic Violence case has been referred to the Dallas County District Attorney's office for presentation to the grand jury. The Dallas Police Department will not release any details of the investigation while it is pending grand jury presentation."
Causing serious injury could be considered aggravated assault, which is a felony, in the state of Texas.
The punishment for a second-degree felony is two to 20 years in prison and/or a fine up to $10,000.
Manziel is also being investigated by the NFL for possible violations of the personal conduct policy.