From Jayski.com:

Edwards Wrecks in Late Model Race: UPDATE 3: An accident during a late model race at I-80 Speedway near Lincoln, Nebraska sent #99-Carl Edwards to an Omaha area hospital Sunday night with what appear to be minor injuries. Edwards was racing as part of a Carl Edwards promotion for the Speedway and was scheduled to appear with his brother Kenny and father Carl Sr. The accident happened while racing in the 25 lap Super Late Model A main Feature on a restart after the events single caution only a few laps in. A car slowed in the front of the field sending another car into the backstretch wall. Edwards crashed into the second car setting off a melee that involved 11 of the 28 cars in the field. Edwards was able to walk from his car to his hauler where paramedics treated him. Shortly after he walked to an ambulance with an ice pack on his left hand. He was eventually taken by ambulance to a hospital in West Omaha for precautionary x-rays. Hospital officials, citing privacy concerns, refused to give details of Edwards injuries but one person did say that there seemed to be no indications of any broken bones.(Cup Scene Daily)(7-23-2007)

UPDATE: [Edwards] was involved in a third-lap collision and left I-80 Speedway in the back of an ambulance. One track official said there had been talk of someone in the collision having a broken bone, and Carl's father, Carl Sr., said his son's hand "looked broken." Edwards started the 25-lap race on the inside of row eight and was making a charge into contention early when he hit the back of a car that had spun out and gotten into the wall along the backstretch. A 10-car pileup ensued and left Edwards' car mangled. He walked to his trailer, where he received medical attention for nearly 20 minutes before emerging with a bag draped around his right hand. He gave the crowd one last wave before getting into the back of the ambulance. Younger brother Kenny Edwards said Carl had been transferred to Lakeside Hospital in Omaha and was awaiting results. Kenny said he thought it was a broken thumb, probably caused when it was caught in the steering wheel during the collision. Kenny Edwards suffered the same injury in the collision and was shaking hands with his left hand after the race but said it wasn't as severe as his brothers.(Omaha World-Herald)(7-23-2007)

UPDATE 2: Interviewed on Sirius Radio'sThe Morning Drive, Nick Rubek of the Omaha World-Herald said that Edwards has been diagnosed with a dislocated thumb.(7-23-2007)

UPDATE 3: [Edwards] is not testing today at the Milwaukee Mile and will not test a Busch Series car Tuesday at Bristol Motor Speedway but likely will race this weekend in the Busch and Nextel Cup events in Indianapolis. The Roush Fenway Racing driver was having his right hand examined today by a specialist in Columbia, Mo., to determine if there were any injuries, according to the team.(SceneDaily.com)(7-23-2007)