How the Dassler brothers created two global sportswear firms.In 1948, Adi and Rudi Dassler who lived in a small German town fell out. They went on to set up Adidas and Puma. Adi Dassler played a crucial role in West Germany's victory in the 1954 World Cup with his game-changing footwear. In 2022, Reena Stanton-Sharma spoke to Adi's daughter Sigi Dassler, who remembers her dad’s obsession with sports shoes and talks about her fondness for rappers Run-DMC, who paid tribute to her dad’s shoes in their 1986 song My Adidas.