Manchester United's Rio Ferdinand (L) and Manchester City's Sergio Aguero (R) juggle the ball during their visit to the Singapore Flyer in Singapore on May 15, 2014 for the SG Game ON! Ultimate Selfie Challenge. SG Game On! is a two-day contest aimed at celebrating Singapore's passion for football in the lead up to the 2014 FIFA World Cup. AFP PHOTO (Photo credit should read STR/AFP/Getty Images)
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