KNOXVILLE, Tenn. - A Knoxville high school coach's CPR training and the use of an automated external defibrillator are being credited with saving a 14-year-old's life.

   Central High School freshman Hunter Helton had sudden cardiac arrest during a conditioning practice Monday.

   According to The Knoxville News Sentinel, coach Jon Higgins, -- a former University of Tennessee player -- performed the rescue protocol on Hunter and used the AED to stabilize his heartbeat. The youth is a cousin to Colorado Rockies first baseman Todd Helton, a former UT standout.

   Hunter's father said the boy had no history of heart problems.

   Hunter woke up at East Tennessee Children's Hospital, remembering only a burning in his chest before he passed out.

   He will undergo further tests at Vanderbilt University Medical Center.