TMZ.com adds that the Medical Examiner in Pinellas County, Florida did not notice "extensive trauma" to his body while conducting the autopsy.
Toxicology results are expected to be released in four to six weeks. It was previously reported that the police didn't suspect that drugs or alcohol were involved.
Savage died in a car accident Friday in Seminole, Florida when his 2009 Jeep Wrangler veered across a concrete median, through oncoming traffic, and "collided head-on with a tree."
Savage was pronounced dead at Largo Medical Center while his wife Barbara Lynn suffered minor injuries.
Mt. Killamanjaro: WWE Live From Madison Square Garden Review
TNA Bound For Glory Live Results And Your Feedback
UFC Responds To Allegations Of Drug Test Cover Up, Bonuses, Extended Ronda Rousey - Holm Promo
Bayley Learns A New Skill At "Loud" Festival, Cesaro Joins Team BAD (Photo), WWE Fans On MSG
Backstage TNA Bound For Glory Videos: Drew Galloway, The Wolves, Eric Young, Gail Kim, More
Forbes On If Brock Lesnar MSG Match Had Value, WWE Shop Sale, WWE Star Signs With Media Agency
Vince Russo Talks Dixie Carter's Big Announcement, TNA's Run On Destination America Ending, More
WWE "Live From MSG: Lesnar Vs. Big Show" Results - Steel Cage Match, Team PCB, Kane, More
Why John Cena Is Taking Time Off, Top WWE Star And Hall Of Famer Added To Tour, Daniel Bryan Removed
Finn Balor Responds To CM Punk's Balor - Grado Comment, WWE NXT Attendance Note, Birthdays
Final Card For Tonight's Live WWE Network Special From MSG, Live Coverage Reminder
Scott Hall Talks Being "Uncomfortable" After WWE Return, Giving Sting His "Crow" Gimmick, Drug Abuse