Former NBA point guard Mookie Blaylock was critically injured Friday in a serious car accident and is on life support, according to The Atlanta Journal-Constitution.Jonesboro police Chief Franklin Allen told the Constitution that Blaylock's vehicle crossed into oncoming traffic on a highway in Clayton County, Ga., resulting in a head-on collision with another vehicle. Two people in the other car were also reportedly transported to a hospital.Two accident victims were taken by ambulance to Atlanta Medical Center. One victim was airlifted to the same hospital. All victims were initially listed as critical.