02:43 PT -- An L.A. County Sheriff's Dept. source tells TMZ Sports they do not believe alcohol was involved but they did not say whether any other substance was possibly involved.
Mark Steinberg, Tiger's agent, says he sustained multiple leg injuries and is currently in surgery.
Tiger Woods was hospitalized following a bad single-car accident in L.A. County on Tuesday morning -- with officials requiring the jaws of life to free him from the vehicle.
"On February 23, 2021, at approximately 7:12 AM, LASD responded to a single vehicle roll-over traffic collision on the border of Rolling Hills Estates and Rancho Palos Verdes," officials say.
"The vehicle was traveling northbound on Hawthorne Boulevard, at Blackhorse Road, when it crashed. The vehicle sustained major damage."
"The driver and sole occupant was identified as PGA golfer, Eldrick 'Tiger' Woods," officials confirmed.
"Mr. Woods was extricated from the wreck with the 'jaws of life' by Los Angeles County firefighters and paramedics, then transported to a local hospital by ambulance for his injuries."
Unclear what caused the accident. Cops are investigating.
45-year-old Tiger was in the area for his annual Genesis Invitational golf tournament at the Riviera Country Club in the Pacific Palisades.
Just this week, he took photos with stars like David Spade and Dwyane Wade -- and announced his recent back surgery could keep him out of the upcoming Masters tournament in Augusta, Georgia.
It's not the first time Tiger Woods has been in a high-profile car accident -- he crashed his SUV in a 2009 incident at his home in Florida.
In 2017, he was arrested after cops found him passed out behind the wheel of his car. Tiger said he had taken prescription medication before the accident and didn't realize the effect the meds would have on him.