Kyle Busch continued preparations for the open Chase for the Sprint Cup race on Saturday as drivers went through two practices.
Activities at Chicagoland Speedway included qualifying for the day's Xfinity Series race, which begins after 3 p.m. ET. But for Cup teams, especially the 16 in the Chase, focus was on getting things right for Sunday.
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About 2:45 p.m. ET on Sunday, 40 Cup cars will begin the Teenage Mutant Ninja Turtles 400.