RANCHO PALOS VERDES, Calif. (KABC) -- Tiger Woods is not expected to face any criminal charges stemming from the rollover crash in Rancho Palos Verdes that left him with significant injuries, Los Angeles County Sheriff Alex Villanueva said Wednesday.

While the cause of the accident is being investigated, Villanueva called it an accident and said there were no indications that Woods was impaired in any way.

"He was not drunk," Villanueva said Wednesday on Instagram Live. "We can throw that one out."

At most, the investigation could lead to a misdemeanor charge if it's determined Woods was on his cellphone or distracted in some other way, the sheriff added. Investigators have not yet pulled a "black box" from the damaged SUV to determine how fast Woods was traveling when the crash occurred.

Woods remained in the hospital Wednesday after suffering significant injuries to his right leg and undergoing surgery.

The crash happened on the border of Rolling Hills Estates around 7:12 a.m. Tuesday, according to the Los Angeles County Sheriff's Department. Details about what led up the crash were not released, but authorities say the SUV was traveling northbound on Hawthorne Boulevard when it crashed at Blackhorse Road.

The 45-year-old golf star was the sole occupant of the SUV, and no other vehicles were believed to be involved in the crash. He was pulled from the wreckage by Los Angeles County firefighters and paramedics.

The crash caused "significant" injuries all down his right leg that featured rods, pins and screws during what was described as a "long surgical procedure" at Harbor-UCLA Medical Center.

Anish Mahajan, the chief medical officer, said Woods shattered tibia and fibula bones on his right leg in multiple locations. Those were stabilized by a rod in the tibia. He said a combination of screws and pins were used to stabilize additional injuries in the ankle and foot.