A Joshua Tree man was sent to the hospital after he rolled his car yesterday. According to Fire Captain Mark Faulkner, about 6 p.m. an unidentified man in his early 30s was driving northbound on Outpost Road, south of the highway, when he said his brakes failed. The fast-moving car hit a bump in the dirt road and rolled over. Faulkner said the man, who was standing outside the car when paramedics arrived, complained of back and neck pain, and so he was taken to Hi-Desert Medical Center. The woman and three children with him were uninjured.