Adidas' in the Champions League, Mitre's in the FA Cup, and Puma's (which Arsenal's manager ripped in January) in the Carabao Cup-and none of them look like the iconic soccer ball you'd imagine.

adidas developed a soccer ball based on shapes from Ancient Greek arithmetic: the Telstar ball was formed of 12 black pentagons and 20 white hexagons, stitched together in a perfect circle.