DIXON (CBS/AP) — A former Northern California high school coach has been convicted of having unlawful sexual intercourse with a minor.

Thirty-eight-year-old Troy Hensley pleaded no contest to three felony counts related to a sexual relationship he carried on with a 17-year-old girl.

The Yolo County District Attorney’s office says, under terms of a plea agreement, Hensley will be placed on felony probation.

Authorities say Hensley began the relationship when the girl was still in high school.

The girl had also worked under Hensley’s supervision at a bar and grill in Dixon.

Hensley’s formal sentencing is scheduled for Dec. 20 in Yolo County Superior Court.

(Copyright 2013 by CBS San Francisco and Bay City News Service. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)