Nationwide driver Nelson Piquet Jr. penalized for gay slur

NASCAR has fined Nelson Piquet $10,000 and ordered him to attend sensitivity training after posting a gay slur on a social media site. Following a self-posted picture by fellow Nationwide Series driver Parker Kligerman on Instagram after a workout Sept. 25, Piquet responded with a derogatory response -- since deleted -- apparently in jest. A fan, @MatthewBreuer, screen captured the post and questioned Piquet about the comment, which Piquet responded with a since deleted tweet: "Maybe u should kn...