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Albert II of Monaco (C), Charlotte Casiraghi (L), her son Rafael attend the Monaco Formula E Grand Prix at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / Yann COATSALIOU (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

Albert II of Monaco (C), Charlotte Casiraghi (L), her son Rafael attend the Monaco Formula E Grand Prix at the Circuit de Monaco in Monte-Carlo on May 13, 2017.  / AFP PHOTO / Yann COATSALIOU        (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

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Albert II of Monaco (L), Charlotte Casiraghi (R), her son Rafael attend the podium ceremony of the Monaco Formula E Grand Prix at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / Yann COATSALIOU (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

Albert II of Monaco (L), Charlotte Casiraghi (R), her son Rafael attend the podium ceremony of the Monaco Formula E Grand Prix at the Circuit de Monaco in Monte-Carlo on May 13, 2017.  / AFP PHOTO / Yann COATSALIOU        (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

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Albert II of Monaco (L), Charlotte Casiraghi (R), her son Rafael attend the podium ceremony of the Monaco Formula E Grand Prix at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / YANN COATSALIOU (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

Albert II of Monaco (L), Charlotte Casiraghi (R), her son Rafael attend the podium ceremony of the Monaco Formula E Grand Prix at the Circuit de Monaco in Monte-Carlo on May 13, 2017.  / AFP PHOTO / YANN COATSALIOU        (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

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CORRECTION - Winner Renault E.Dams Formula E Team's Swiss driver Sebastien Buemi (C), second placed ABT Schaeffler Audi Sport Formula E team's Brazilian driver Lucas Di Grassi (L), and third-placed Mahindra Racing Formula E German driver Nick Heidfeld pose on the podium of the Monaco Formula E Grand Prix, next to Albert II of Monaco, Louis Ducruet, Charlotte Casiraghi and her son Rafael, at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / YANN COATSALIOU / The erroneous mention[s] appearing in the metadata of this photo by YANN COATSALIOU has been modified in AFP systems in the following manner: [---] instead of [---]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require. (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

CORRECTION - Winner Renault E.Dams Formula E Team's Swiss driver Sebastien Buemi (C), second placed ABT Schaeffler Audi Sport Formula E team's Brazilian driver Lucas Di Grassi (L), and third-placed Mahindra Racing Formula E German driver Nick Heidfeld pose on the podium of the Monaco Formula E Grand Prix, next to Albert II of Monaco, Louis Ducruet, Charlotte Casiraghi and her son Rafael, at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / YANN COATSALIOU / The erroneous mention[s] appearing in the metadata of this photo by YANN COATSALIOU has been modified in AFP systems in the following manner: [---] instead of [---]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.        (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

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Winner Renault E.Dams Formula E Team's Swiss driver Sebastien Buemi (C), second placed ABT Schaeffler Audi Sport Formula E team's Brazilian driver Lucas Di Grassi (L), and third-placed Mahindra Racing Formula E German driver Nick Heidfeld pose on the podium of the Monaco Formula E Grand Prix, next to Albert II of Monaco, Louis Ducruet, Charlotte Casiraghi and her son Rafael, at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / Yann COATSALIOU (Photo credit should read YANN COATSALIOU/AFP/Getty Images)

Winner Renault E.Dams Formula E Team's Swiss driver Sebastien Buemi (C), second placed ABT Schaeffler Audi Sport Formula E team's Brazilian driver Lucas Di Grassi (L), and third-placed Mahindra Racing Formula E German driver Nick Heidfeld pose on the podium of the Monaco Formula E Grand Prix, next to Albert II of Monaco, Louis Ducruet, Charlotte Casiraghi and her son Rafael, at the Circuit de Monaco in Monte-Carlo on May 13, 2017. / AFP PHOTO / Yann COATSALIOU        (Photo credit should read YANN COATSALIOU/AFP/Getty Images)