McMurray scrapes wall during Daytona 500 practice

Defending Daytona 500 champion Jamie McMurray scraped the wall

in practice and will switch to a backup car for NASCAR’s season

opener.

McMurray apparently drove over a broken brake rotor from his No.

1 Chevrolet, slicing his right-front tire and sending the car into

the wall Saturday.

McMurray was unharmed, but his car sustained some damage along

the right side. McMurray’s Earnhardt Ganassi Racing team decided to

switch to the backup car, the one McMurray finished second in last

April at Talladega.

McMurray says the crash did ”minimal damage”. He adds that the

team will send the primary car back to North Carolina for

repairs.

McMurray won three races in 2010, including the Daytona 500 and

the Brickyard 400.