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Mario Andretti Calls Greg Biffle Loss ‘Sad & Shocking’

“It will forever be the #GregBiffleCrash,” wrote motorsports legend Andretti. “What a sad, shocking day.” Praying for Greg, his wife Cristina, and his children Emma and Ryder, he called Biffle “a star driver and a star in his second act as a humanitarian,” sending strength to grieving families. The cause of the fatal crash is yet to be revealed.