Former University of Hawaii quarterback Colt Brennan was hospitalized today in Kona with head trauma, several broken ribs and a broken left clavicle after being involved in a two-car accident on the Big Island.

His father, Terry Brennan, told the Star-Advertiser this afternoon that his son is listed in stable condition. Colt Brennan was sedated after being transported from the Big Island to Oahu at about 4 p.m. today. The Queen’s Medical Center lists him in serious condition.

“We’re upset,” Terry Brennan said. “We’re hopeful all of the victims are OK. This is our worst nightmare. You always worry about safety, whether you’re in Hawaii or on the mainland.”

Police confirmed this afternoon that Brennan was a passenger in an SUV driven by Shakti Stream, 27, of Kona. It was traveling north on Queen Kaahumanu Highway near the 90-mile marker at about 9:30 a.m. It crossed the center line and collided head-on with a Saab sedan.

A fire department official at the scene said Brennan was stuck in the vehicle and that Stream had managed to crawl out. Both were taken to Kona Community Hospital in serious condition. The driver of the Saab, a 47-year-old Waikoloa woman whose identity the police did not release, was taken to North Kohala also in serious condition.

The highway was temporarily closed and re-opened at about 11:15 a.m.

Police have opened two negligent injury investigations. The exact cause of the crash is still under investigation. It is undetermined if speed, alcohol or drugs were a factor in the crash.

Brennan has been spending time on the Big Island after being released by the Oakland Raiders this summer. Last month, he had an exploratory workout with the Houston Texans.

Brennan, a record-setting quarterback for the Warriors, was drafted in the sixth round by the Washington Redskins in the 2008 National Football League Draft.

After undergoing four surgeries, he was released by the Redskins before the start of training camp this summer.