Former police officer Derek Chauvin has asked for a new trial, two weeks after he was found guilty of killing George Floyd.
Among the reasons given by Chauvin's lawyers in the court filing are the interests of justice, errors of law at trial, and prosecutorial and jury misconduct.
Former Minneapolis police officer Chauvin had denied charges of second-degree murder, third-degree murder and second-degree manslaughter.
But after 10 and a half hours of deliberations, the jury convicted the 45-year-old on all counts in April.
Mr Floyd, a 46-year-old black man, died while being restrained by Chauvin, who is white, during his arrest in the US city in May 2020.
Video filmed by bystanders showed Chauvin's knee pressed into Mr Floyd's neck and back for almost nine minutes as he gasped for breath.
The footage shocked the world and sparked global protests about racism and police brutality.