The Phoenix Mercury fired assistant coach Todd Troxel, the team announced Tuesday. 

"After a media report alerted us to an incident involving Troxel and his fiancee, we immediately retained an outside firm to conduct an independent investigation that included interviews with both involved parties," the Mercury said in the statement. "We have determined that Troxel's conduct on that night was unacceptable and does not represent our values as an organization, and we cannot continue his employment."

Prosecutors in Paradise Valley, Arizona, charged Troxel with misdemeanor assault and disorderly conduct in December.

TMZ Sports reported he had been taken to a local hospital after allegedly punching through a glass window and severing two arteries in his arm. He told authorities he had cut his arm while putting up Christmas lights, but his fiancee said the injury happened during a fight they were having.

Lt. Michael Cole, a spokesman for the Paradise Valley Police Department, told the Arizona Republic's Jeff Metcalfe and Uriel J. Garcia that Troxel and his fiancee had gotten into an argument during an Uber ride. The disagreement "turned into a physical altercation" when the two arrived home.

Troxel was a member of the Mercury staff for the past five seasons.