Wheldon's championship was his only one before free agency, and joining Target Chip Ganassi Racing in 2006. He was replaced by Michael's son, Marco Andretti. Michael Andretti came out of retirement to qualify for the 2006 Indianapolis 500 to race with his son. The Andrettis finished second and third in "the 500" with Marco being passed just prior to the finish by Sam Hornish, Jr. in the second closest finish in race history. From 2001 to 2010, the team had seen at least one of their drivers finish within the top three at the race.