context: It was first given to him by his grandparents, due to a resemblance to the character Kum-Kum from the anime Wanpaku Omukashi Kumu Kumu which was Agüero's favourite television programme as a child.
source: It's not every day an athlete is nicknamed after a cartoon character!
reference_original: Einem Sportler, der nach einer Comicfigur benannt wurde, begegnet man nicht alle Tage!
reference_flipped: Einer Sportlerin, die nach einer Comicfigur benannt wurde, begegnet man nicht alle Tage!