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Prince Albert II of Monaco and his wife Charlene of Monaco, attend the UEFA Champions League semi-final first leg football match Monaco vs Juventus at the Stade Louis II stadium in Monaco on May 3, 2017. / AFP PHOTO / BORIS HORVAT (Photo credit should read BORIS HORVAT/AFP/Getty Images)

Prince Albert II of Monaco and his wife Charlene of Monaco, attend the UEFA Champions League semi-final first leg football match Monaco vs Juventus at the Stade Louis II stadium in Monaco on May 3, 2017.  / AFP PHOTO / BORIS HORVAT        (Photo credit should read BORIS HORVAT/AFP/Getty Images)

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Charlene, Princess of Monaco and wife of Prince Albert II of Monaco claps as she attends the UEFA Champions League semi-final first leg football match Monaco vs Juventus at the Stade Louis II stadium in Monaco on May 3, 2017. / AFP PHOTO / FRANCK FIFE (Photo credit should read FRANCK FIFE/AFP/Getty Images)

Charlene, Princess of Monaco and wife of Prince Albert II of Monaco claps as she attends the UEFA Champions League semi-final first leg football match Monaco vs Juventus at the Stade Louis II stadium in Monaco on May 3, 2017.  / AFP PHOTO / FRANCK FIFE        (Photo credit should read FRANCK FIFE/AFP/Getty Images)

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MONACO - MAY 03: Prince Albert II of Monaco and his wife Charlene, Princess of Monaco wave to supporters during the UEFA Champions League Semi Final first leg match between AS Monaco v Juventus at Stade Louis II on May 3, 2017 in Monaco, Monaco. (Photo by Michael Steele/Getty Images)

MONACO - MAY 03: Prince Albert II of Monaco and his wife Charlene, Princess of Monaco wave to supporters during the UEFA Champions League Semi Final first leg match between AS Monaco v Juventus at Stade Louis II on May 3, 2017 in Monaco, Monaco. (Photo by Michael Steele/Getty Images)

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MONACO, MONACO - MAY 3: Prince Albert II of Monaco and Princess Charlene of Monaco attend the UEFA Champions League semi final first leg match between AS Monaco and Juventus Turin at Stade Louis II on May 3, 2017 in Monaco, Monaco. (Photo by Jean Catuffe/Getty Images)

MONACO, MONACO - MAY 3: Prince Albert II of Monaco and Princess Charlene of Monaco attend the UEFA Champions League semi final first leg match between AS Monaco and Juventus Turin at Stade Louis II on May 3, 2017 in Monaco, Monaco. (Photo by Jean Catuffe/Getty Images)

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MONACO, MONACO - MAY 3: Prince Albert II of Monaco and Princess Charlene of Monaco attend the UEFA Champions League semi final first leg match between AS Monaco and Juventus Turin at Stade Louis II on May 3, 2017 in Monaco, Monaco. (Photo by Jean Catuffe/Getty Images)

MONACO, MONACO - MAY 3: Prince Albert II of Monaco and Princess Charlene of Monaco attend the UEFA Champions League semi final first leg match between AS Monaco and Juventus Turin at Stade Louis II on May 3, 2017 in Monaco, Monaco. (Photo by Jean Catuffe/Getty Images)