The Manchester rivals took on each other in some friendly challenges, including tasting durians and trying out Tai ChiFormer Manchester United defender, Rio Ferdinand and Manchester City forward Sergio Aguero played friendly nemesis in Singapore as they went head-to-head in a series of challenges.
The English Premier League duo kept their legions of fans updated with timely tweets on their official Twitter accounts.
The event is organised by SingTel and Samsung. Both Ferdinand and Aguero will be meeting fans at Chevron House in a football carnival on Friday.
Ferdinand recently announced the end of his Manchester United career but has ruled out retirement. Aguero meanwhile led his City side to the Premier League title over the weekend and will be in action at the World Cup.