According to the celebrity news site, a driver behind the wheel of a Ferrari sideswiped Wilson's Toyota SUV before hitting a BMW, in which Haas was a passenger.
Haas, 35, was a passenger in a Ferrari driven by an unidentified man. L.A. County fire officials said that the driver of the Ferrari was pronounced dead at the scene, while Haas and the 50-year-old woman driving the other auto were taken to the hospital.
Police told KTLA television station that another vehicle driven by actor Luke Wilson was "clipped" by the Ferrari but the "Legally Blonde" star was unhurt.
Haas, a six-time PGA Tour victor, was scheduled to play in the Genesis Open at the Riviera Country Club in Pacific Palisades that begins Thursday, but will withdraw to recover at his home in Greenville, South Carolina, his manager said. The driver of the Ferrari, whose name has not been released, was killed.
The Ferrari collided with a BMW and a 71-year-old man driving the Ferrari was pronounced dead at the scene. Wilson did not sustain serious injury. Fire officials said that the two hospitalized victims were considered to be seriously injured immediately after the crash, but Detective Fischer told KTLA that he'd since been told that Haas and the woman were "doing okay". According to Fischer, that vehicle was being driven by actor Luke Wilson.
Haas, 35, was treated and released from a local hospital and has withdrawn from the Genesis Open, which is this week's PGA Tour stop.
The 35-year-old Haas was taken to the hospital, suffering from pain and swelling in his legs.
Haas was a passenger in the Ferrari.
The world number 67 is expected to make a full recovery.