One of the hottest properties in South America, up-and-coming Racing Club centre-forward Luciano Vietto, gave a lesson on how to re-take a penalty on Friday night against Union Santa Fe. At 0-0, Vietto earned Racing Club a penalty, he buried it home only for the referee to say Vietto had taken the penalty before he had blown his whistle and as a result had to re-take it. Watch the video below to see how Vietto reacted under pressure…