They say that if you’re good enough, you’re old enough, and the fearlessness of youth has been exploited by national team managers since the World Cup’s inception almost 100 years ago. While many have to wait until the latter stages of their careers to fulfil a childhood ambition, plenty have been exposed to the glamor, history and majesty of World Cup soccer at the tenderest of ages. Some have enjoyed career-defining summers, but plenty failed to deliver upon the promise that warranted desperate or deserving World Cup call-ups in their teenage years. Here are the 10 youngest players in World Cup history. 10. Garang Kuol (Australia) – 18 Years, 68 Days Kuol was a wildcard pick for Australia in Qatar. | Marc Atkins/Getty Images We kick off our list of World Cup youngsters with Australian Garang Kuol, who was very much a wildcard selection in Qatar in 2022. He was only 17 at the time of his call-up, having signed for Newcastle United in the summer.…