Kyle Busch apologizes for using slur during interview following Xfinity 500 in Martinsville | CBS Sports Headlines Kyle Busch apologizes for using slur during interview following Xfinity 500 in Martinsville Busch was upset at something Brad Keselowski did during the race and had some choice words for him ESN FeedsThis … Continue reading Kyle Busch apologizes for using slur during interview following Xfinity 500 in Martinsville