Sean Sweeney spent four seasons with the Mavericks and is one of the central figures behind the franchise’s defensive identity.

The St. Paul product is leaving Dallas, where he spent the last four years serving as the Mavericks’ defensive coordinator, for San Antonio, per an ESPN report. Sweeney, a Cretin-Derham hall and University of St. Thomas product, will become the Spurs’ associate head coach under San Antonio head man Mitch Johnson.