Jimmie Johnson returned to the race track Friday still mourning the loss of his brother-in-law in a skydiving accident.
Jordan Janway died Sunday in San Diego County after apparently colliding with another parachutist during freefall, and then failing to open his parachute in time.
Janway was the 27-year-old brother of Johnson's wife, Chandra.
The six-time NASCAR champion said it's been a difficult week as the Janway family has mourned the loss. But he said he was eager to get back to work and turn his attention toward winning Sunday's race.