On April 30, 2018, plaintiff John Evans, 41, a landscaper, was motorcycling on Garden Highway, near its intersection at North Bayou Road, in Sacramento. While he was proceeding through the intersection, he was struck by a vehicle that was being driven by Michael Coyle, who was traveling on North Bayou Road. Evans claimed that he suffered of his back, his head and his neck. Evans sued Coyle. The lawsuit alleged that Coyle was negligent in the operation of his vehicle. Evans claimed that Coyle ignored a stop sign that governed his entrance to the intersection. Evans’ course was not governed by a traffic-control device. Coyle claimed that, upon reaching the intersection, he executed a full stop. He claimed that Evans was reckless in the operation of the motorcycle., Evans was retrieved by an ambulance, and he was transported to a hospital. He underwent minor treatment. Evans ultimately claimed that he suffered trauma that produced protrusions of his C4-5 and L3-4 intervertebral discs. He also claimed that he injured his head. Evans underwent chiropractic manipulation, physical therapy and a pain-management regimen, but he claimed that he suffered ongoing pain related to the accident. He underwent a discectomy, which involved excision of his C4-5 disc, and he underwent surgical fusion of his spine’s L3-4 level. Evans also underwent tests of his head but no treatment. Evans claimed that he suffers ongoing pain but no limitations. He sought recovery of past medical expenses, and he sought recovery of damages for past and future pain and suffering. Defense counsel contended that Evans’ were work-related conditions, not products of the accident.