Adolf Dassler

Adolf ''Adi'' Dassler (3 November 1900 -- 6 September 1978) was a German cobbler, inventor and entrepreneur who founded the German sportswear company Adidas, and the younger brother of Rudolf Dassler, founder of Puma. Dassler was an innovator in athletic shoe design and one of the early promoters who obtained endorsements from athletes to drive sale of his products. As a result of his concepts, Adi Dassler built the largest manufacturer of sportswear and equipment. At the time of his death Adidas had 17 factories and annual sales of one billion marks.

Is this statement correct "were the creators of puma and adidas brothers"?
yes