"When Mr. Floyd was no longer offering up any resistance to the officers, they could have ended their restraint," retired Minneapolis Police Sergeant David Pleoger said.
Chauvin told Pleoger during a brief phone conversation that George Floyd was combative during the deadly incident, according to a recording of the phone call played during Chauvin's murder trial.
"We just had to hold a guy down who was going crazy on the back of the passenger floor," Chauvin was heard saying to Pleoger, who testified on Thursday.
Pleoger also acknowledged receiving a phone call from a 911 dispatcher expressing concern about the use of force after observing the police officers on a surveillance camera.
Lawyers for Chauvin, 45, said he followed his police training and is not guilty of the charges brought by the Minnesota Attorney General's Office of second-degree murder, third-degree murder and second-degree manslaughter.
Multiple videos showed Chauvin, a White police officer pressing his knee into the neck of George Floyd, a 46-year-old handcuffed Black man as he pled for his life. The footage sparked worldwide protests against police brutality against Black people.