The Detroit Lions and quarterback Matthew Stafford are planning to part ways.

The Lions and Stafford have mutually agreed to explore the possibilities of trading him, according to a person with direct knowledge of the situation. The person spoke Saturday night to The Associated Press on condition of anonymity because the team and Stafford did not announce the decision.

Stafford expressed an interest in being traded after the season ended and the team responded by tabling the idea until a new general manager and coach were hired, the person said. Stafford was on a call with Lions general manager Brad Holmes and coach Dan Campbell earlier this week, according to the person, and they discussed moving on without each other.