The caution flag came out in Stage 1 of Sunday's race at Martinsville after Danica Patrick clipped the back of A.J. Allmendinger's car.
Allmendinger spun out, and his car suffered damage. Patrick's car was unscathed as she avoided most of the damage.
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Caution's out for @AJDinger ??#NASCARPlayoffs pic.twitter.com/Io8BpBJYhA
— NASCAR on NBC (@NASCARonNBC) October 29, 2017
The caution came out earlier in the race for David Ragan, but it was mostly a clean first stage of the race without big wrecks.
It's a cold and rainy day at Martinsville, so there's a possibility of accidents throughout the remainder of the race.