Sané was born on January 11, 1996. He was born in Essen, Germany. Sané joined the youth team of SG Wattenscheid 09 at the age of 5. In 2005, he joined the academy of German club Schalke 04. He would join the academy of Bayer Leverkusun in 2008. He rejoined Schalke 04's academy in 2011