The Calgary Stampeders have announced starting defensive back Quincy Butler has left the team after Canadian immigration officials confirmed the American import is no longer eligible to work in Canada.

Butler received the news on Wednesday. The fourth year defensive back is not expected to return to the team this season.

The cornerback, a Texas native who has been with the CFL team since 2011, was suspended by the club on June 1 following an assault outside of the Cowboys nightclub on May 15, 2014.

In August, Butler entered a guilty plea to a charge of assault causing bodily harm and received18 months probation.

Butler was activated by the Stampeders in late August and has played in three games this season, recording thirteen tackles.

Jeremy Williams will start in place of Butler for the Stampeders in Regina on Friday night.