Head coach Cindy Parlow Cone will be leaving the Portland Thorns for personal reasons. (Cal Sport Images/AP)

The Portland Thorns are coming off an NWSL championship, but they will have a new coach next season.

Sources tell SI.com that Cindy Parlow Cone is leaving as coach of the league champions for personal reasons. Portland will announce a new head coach next week, and one top candidate is Paul Riley, a former WPS Coach of the Year.