Bollywood superstar Abhishek Bachchan is a self confessed sports freak. The actor was recently seen at the opening ceremony of the 2012 London Games. This time he is back to the Games as the brand ambassador of a leading brand which is associated as the official timekeeper. While at this do, the actor wished woman boxer MC Mary Kom all the luck for her bouts to come. Infact AB Jr also wished luck to the entire Indian contingent.