CONCORD, N.C. (AP) -- Erik Jones was filming a segment for NASCAR on NBC/NBCSN when he ran into an unexpected barrier. 
Jones clipped the lower section of steps that are used to cross from the grandstands into the infield at Charlotte Motor Speedway as he rounded Turn 4 on Saturday. The steps had inadvertantly been left along the frontstrech wall. 
Jones was driving the NBC wrapped car at the time. He was not injured. 
“I never really knew what I hit," Jones said. "It was pretty wild."
Video posted to Twitter by a fan in the grandstands showed the broken steps laying on the track.